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Propagate Carbon type alignments into LLVM IR. (#7290)
Use the Carbon-computed alignment for allocas, loads, stores, and memcpys. Previously we used whatever LLVM felt like giving us, which would result in ABI mismatches and runtime crashes due to misalignment when creating objects of imported C++ class types, as well as resulting in some surprising choices like `(i32, i32)` and `()` having 8-byte alignment instead of 4 and 1, respectively.
This commit is contained in:
Richard Smith
@@ -0,0 +1,248 @@
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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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// INCLUDE-FILE: toolchain/testing/testdata/min_prelude/primitives.carbon
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//
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// AUTOUPDATE
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// TIP: To test this file alone, run:
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// TIP: bazel test //toolchain/testing:file_test --test_arg=--file_tests=toolchain/lower/testdata/interop/cpp/class/import/alignment.carbon
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// TIP: To dump output, run:
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// TIP: bazel run //toolchain/testing:file_test -- --dump_output --file_tests=toolchain/lower/testdata/interop/cpp/class/import/alignment.carbon
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// --- alignment.carbon
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library "[[@TEST_NAME]]";
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import Cpp;
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inline Cpp '''
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struct NaturallyAligned {
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int n;
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};
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struct alignas(16) ExtraAlignment {
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int n;
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};
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struct __attribute__((packed)) Packed {
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int n;
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};
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template<typename T>
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void Take(T&);
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''';
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fn NaturallyAligned(n: i32) {
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var a: Cpp.NaturallyAligned;
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a.n = n;
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Cpp.Take(ref a);
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}
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fn ExtraAlignment(n: i32) {
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var a: Cpp.ExtraAlignment;
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// TODO: We only specify a 4-byte alignment here, although we know that `a.n`
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// has more alignment.
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a.n = n;
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Cpp.Take(ref a);
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}
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fn Packed(n: i32) {
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var a: Cpp.Packed;
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// TODO: We incorrectly specify a 4-byte alignment here. We may need to give
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// underaligned fields a different type in order to prevent miscompiling code
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// like this.
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a.n = n;
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Cpp.Take(ref a);
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}
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// CHECK:STDOUT: ; ModuleID = 'alignment.carbon'
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// CHECK:STDOUT: source_filename = "alignment.carbon"
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// CHECK:STDOUT: target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
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// CHECK:STDOUT: target triple = "x86_64-unknown-linux-gnu"
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CNaturallyAligned.Main(i32 %n) #0 !dbg !11 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %a.var = alloca [4 x i8], align 4, !dbg !17
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %a.var), !dbg !17
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// CHECK:STDOUT: call void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.53704887462f6065"(ptr %a.var), !dbg !17
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// CHECK:STDOUT: %.loc25.n = getelementptr inbounds nuw [4 x i8], ptr %a.var, i32 0, i32 0, !dbg !18
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// CHECK:STDOUT: store i32 %n, ptr %.loc25.n, align 4, !dbg !18
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// CHECK:STDOUT: call void @_Z4TakeI16NaturallyAlignedEvRT_(ptr %a.var), !dbg !19
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// CHECK:STDOUT: ret void, !dbg !20
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
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// CHECK:STDOUT: define internal void @_ZN16NaturallyAlignedC1Ev.carbon_thunk.(ptr noundef %return) #1 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %return.addr = alloca ptr, align 8
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// CHECK:STDOUT: store ptr %return, ptr %return.addr, align 8, !tbaa !21
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// CHECK:STDOUT: %0 = load ptr, ptr %return.addr, align 8, !tbaa !21
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
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// CHECK:STDOUT: define void @"_COp:thunk:Default.381601f5a2bd2e81.Core:NaturallyAligned.Cpp"(ptr sret([4 x i8]) %return) #2 !dbg !24 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_ZN16NaturallyAlignedC1Ev.carbon_thunk.(ptr %return), !dbg !28
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// CHECK:STDOUT: ret void, !dbg !28
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_Z4TakeI16NaturallyAlignedEvRT_(ptr noundef nonnull align 4 dereferenceable(4)) #3
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CExtraAlignment.Main(i32 %n) #0 !dbg !29 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %a.var = alloca [16 x i8], align 16, !dbg !32
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %a.var), !dbg !32
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// CHECK:STDOUT: call void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.f529dae788690cbe"(ptr %a.var), !dbg !32
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// CHECK:STDOUT: %.loc33.n = getelementptr inbounds nuw [16 x i8], ptr %a.var, i32 0, i32 0, !dbg !33
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// CHECK:STDOUT: store i32 %n, ptr %.loc33.n, align 4, !dbg !33
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// CHECK:STDOUT: call void @_Z4TakeI14ExtraAlignmentEvRT_(ptr %a.var), !dbg !34
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// CHECK:STDOUT: ret void, !dbg !35
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
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// CHECK:STDOUT: define internal void @_ZN14ExtraAlignmentC1Ev.carbon_thunk.(ptr noundef %return) #1 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %return.addr = alloca ptr, align 8
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// CHECK:STDOUT: store ptr %return, ptr %return.addr, align 8, !tbaa !36
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// CHECK:STDOUT: %0 = load ptr, ptr %return.addr, align 8, !tbaa !36
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
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// CHECK:STDOUT: define void @"_COp:thunk:Default.6ca50d719a15fa24.Core:ExtraAlignment.Cpp"(ptr sret([16 x i8]) %return) #2 !dbg !38 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_ZN14ExtraAlignmentC1Ev.carbon_thunk.(ptr %return), !dbg !39
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// CHECK:STDOUT: ret void, !dbg !39
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_Z4TakeI14ExtraAlignmentEvRT_(ptr noundef nonnull align 16 dereferenceable(16)) #3
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CPacked.Main(i32 %n) #0 !dbg !40 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %a.var = alloca [4 x i8], align 1, !dbg !43
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %a.var), !dbg !43
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// CHECK:STDOUT: call void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.ee398c9a806dbb35"(ptr %a.var), !dbg !43
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// CHECK:STDOUT: %.loc42.n = getelementptr inbounds nuw [4 x i8], ptr %a.var, i32 0, i32 0, !dbg !44
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// CHECK:STDOUT: store i32 %n, ptr %.loc42.n, align 4, !dbg !44
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// CHECK:STDOUT: call void @_Z4TakeI6PackedEvRT_(ptr %a.var), !dbg !45
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// CHECK:STDOUT: ret void, !dbg !46
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline mustprogress nounwind uwtable
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// CHECK:STDOUT: define internal void @_ZN6PackedC1Ev.carbon_thunk.(ptr noundef %return) #1 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %return.addr = alloca ptr, align 8
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// CHECK:STDOUT: store ptr %return, ptr %return.addr, align 8, !tbaa !47
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// CHECK:STDOUT: %0 = load ptr, ptr %return.addr, align 8, !tbaa !47
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// CHECK:STDOUT: ret void
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: alwaysinline nounwind
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// CHECK:STDOUT: define void @"_COp:thunk:Default.ba085c8bae0456bc.Core:Packed.Cpp"(ptr sret([4 x i8]) %return) #2 !dbg !49 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: call void @_ZN6PackedC1Ev.carbon_thunk.(ptr %return), !dbg !50
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// CHECK:STDOUT: ret void, !dbg !50
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: declare void @_Z4TakeI6PackedEvRT_(ptr noundef nonnull align 1 dereferenceable(4)) #3
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
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// CHECK:STDOUT: declare void @llvm.lifetime.start.p0(ptr captures(none)) #4
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define linkonce_odr void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.53704887462f6065"(ptr sret([4 x i8]) %return) #0 !dbg !51 {
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// CHECK:STDOUT: call void @"_COp:thunk:Default.381601f5a2bd2e81.Core:NaturallyAligned.Cpp"(ptr %return), !dbg !53
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// CHECK:STDOUT: ret void, !dbg !54
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define linkonce_odr void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.f529dae788690cbe"(ptr sret([16 x i8]) %return) #0 !dbg !55 {
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// CHECK:STDOUT: call void @"_COp:thunk:Default.6ca50d719a15fa24.Core:ExtraAlignment.Cpp"(ptr %return), !dbg !56
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// CHECK:STDOUT: ret void, !dbg !57
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define linkonce_odr void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.ee398c9a806dbb35"(ptr sret([4 x i8]) %return) #0 !dbg !58 {
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// CHECK:STDOUT: call void @"_COp:thunk:Default.ba085c8bae0456bc.Core:Packed.Cpp"(ptr %return), !dbg !59
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// CHECK:STDOUT: ret void, !dbg !60
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// CHECK:STDOUT: }
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// CHECK:STDOUT:
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// CHECK:STDOUT: ; uselistorder directives
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// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 2, 1, 0 }
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// CHECK:STDOUT:
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// CHECK:STDOUT: attributes #0 = { nounwind }
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// CHECK:STDOUT: attributes #1 = { alwaysinline mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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// CHECK:STDOUT: attributes #2 = { alwaysinline nounwind }
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// CHECK:STDOUT: attributes #3 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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// CHECK:STDOUT: attributes #4 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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// CHECK:STDOUT:
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// CHECK:STDOUT: !llvm.module.flags = !{!0, !1, !2, !3, !4}
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// CHECK:STDOUT: !llvm.dbg.cu = !{!5}
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// CHECK:STDOUT: !llvm.errno.tbaa = !{!7}
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// CHECK:STDOUT:
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// CHECK:STDOUT: !0 = !{i32 7, !"Dwarf Version", i32 5}
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// CHECK:STDOUT: !1 = !{i32 2, !"Debug Info Version", i32 3}
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// CHECK:STDOUT: !2 = !{i32 8, !"PIC Level", i32 2}
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// CHECK:STDOUT: !3 = !{i32 7, !"PIE Level", i32 2}
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// CHECK:STDOUT: !4 = !{i32 7, !"uwtable", i32 2}
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// CHECK:STDOUT: !5 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !6, producer: "carbon", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
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// CHECK:STDOUT: !6 = !DIFile(filename: "alignment.carbon", directory: "")
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// CHECK:STDOUT: !7 = !{!8, !8, i64 0}
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// CHECK:STDOUT: !8 = !{!"int", !9, i64 0}
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// CHECK:STDOUT: !9 = !{!"omnipotent char", !10, i64 0}
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// CHECK:STDOUT: !10 = !{!"Simple C++ TBAA"}
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// CHECK:STDOUT: !11 = distinct !DISubprogram(name: "NaturallyAligned", linkageName: "_CNaturallyAligned.Main", scope: null, file: !6, line: 23, type: !12, spFlags: DISPFlagDefinition, unit: !5, retainedNodes: !15)
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// CHECK:STDOUT: !12 = !DISubroutineType(types: !13)
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// CHECK:STDOUT: !13 = !{null, !14}
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// CHECK:STDOUT: !14 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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// CHECK:STDOUT: !15 = !{!16}
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// CHECK:STDOUT: !16 = !DILocalVariable(arg: 1, scope: !11, type: !14)
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// CHECK:STDOUT: !17 = !DILocation(line: 24, column: 3, scope: !11)
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// CHECK:STDOUT: !18 = !DILocation(line: 25, column: 3, scope: !11)
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// CHECK:STDOUT: !19 = !DILocation(line: 26, column: 3, scope: !11)
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// CHECK:STDOUT: !20 = !DILocation(line: 23, column: 1, scope: !11)
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// CHECK:STDOUT: !21 = !{!22, !22, i64 0}
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// CHECK:STDOUT: !22 = !{!"p1 _ZTS16NaturallyAligned", !23, i64 0}
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// CHECK:STDOUT: !23 = !{!"any pointer", !9, i64 0}
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// CHECK:STDOUT: !24 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk:Default.381601f5a2bd2e81.Core:NaturallyAligned.Cpp", scope: null, file: !6, line: 7, type: !25, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !25 = !DISubroutineType(types: !26)
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// CHECK:STDOUT: !26 = !{!27}
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// CHECK:STDOUT: !27 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: null, size: 64)
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// CHECK:STDOUT: !28 = !DILocation(line: 7, column: 8, scope: !24)
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// CHECK:STDOUT: !29 = distinct !DISubprogram(name: "ExtraAlignment", linkageName: "_CExtraAlignment.Main", scope: null, file: !6, line: 29, type: !12, spFlags: DISPFlagDefinition, unit: !5, retainedNodes: !30)
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// CHECK:STDOUT: !30 = !{!31}
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// CHECK:STDOUT: !31 = !DILocalVariable(arg: 1, scope: !29, type: !14)
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// CHECK:STDOUT: !32 = !DILocation(line: 30, column: 3, scope: !29)
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// CHECK:STDOUT: !33 = !DILocation(line: 33, column: 3, scope: !29)
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// CHECK:STDOUT: !34 = !DILocation(line: 34, column: 3, scope: !29)
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// CHECK:STDOUT: !35 = !DILocation(line: 29, column: 1, scope: !29)
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// CHECK:STDOUT: !36 = !{!37, !37, i64 0}
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// CHECK:STDOUT: !37 = !{!"p1 _ZTS14ExtraAlignment", !23, i64 0}
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// CHECK:STDOUT: !38 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk:Default.6ca50d719a15fa24.Core:ExtraAlignment.Cpp", scope: null, file: !6, line: 11, type: !25, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !39 = !DILocation(line: 11, column: 20, scope: !38)
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// CHECK:STDOUT: !40 = distinct !DISubprogram(name: "Packed", linkageName: "_CPacked.Main", scope: null, file: !6, line: 37, type: !12, spFlags: DISPFlagDefinition, unit: !5, retainedNodes: !41)
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// CHECK:STDOUT: !41 = !{!42}
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// CHECK:STDOUT: !42 = !DILocalVariable(arg: 1, scope: !40, type: !14)
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// CHECK:STDOUT: !43 = !DILocation(line: 38, column: 3, scope: !40)
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// CHECK:STDOUT: !44 = !DILocation(line: 42, column: 3, scope: !40)
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// CHECK:STDOUT: !45 = !DILocation(line: 43, column: 3, scope: !40)
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// CHECK:STDOUT: !46 = !DILocation(line: 37, column: 1, scope: !40)
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// CHECK:STDOUT: !47 = !{!48, !48, i64 0}
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// CHECK:STDOUT: !48 = !{!"p1 _ZTS6Packed", !23, i64 0}
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// CHECK:STDOUT: !49 = distinct !DISubprogram(name: "Op", linkageName: "_COp:thunk:Default.ba085c8bae0456bc.Core:Packed.Cpp", scope: null, file: !6, line: 15, type: !25, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !50 = !DILocation(line: 15, column: 32, scope: !49)
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// CHECK:STDOUT: !51 = distinct !DISubprogram(name: "Op", linkageName: "_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.53704887462f6065", scope: null, file: !52, line: 9, type: !25, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !52 = !DIFile(filename: "min_prelude/parts/default.carbon", directory: "")
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// CHECK:STDOUT: !53 = !DILocation(line: 9, column: 28, scope: !51)
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// CHECK:STDOUT: !54 = !DILocation(line: 9, column: 21, scope: !51)
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// CHECK:STDOUT: !55 = distinct !DISubprogram(name: "Op", linkageName: "_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.f529dae788690cbe", scope: null, file: !52, line: 9, type: !25, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !56 = !DILocation(line: 9, column: 28, scope: !55)
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// CHECK:STDOUT: !57 = !DILocation(line: 9, column: 21, scope: !55)
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// CHECK:STDOUT: !58 = distinct !DISubprogram(name: "Op", linkageName: "_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.ee398c9a806dbb35", scope: null, file: !52, line: 9, type: !25, spFlags: DISPFlagDefinition, unit: !5)
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// CHECK:STDOUT: !59 = !DILocation(line: 9, column: 28, scope: !58)
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// CHECK:STDOUT: !60 = !DILocation(line: 9, column: 21, scope: !58)
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+9
-9
@@ -179,7 +179,7 @@ fn Four() {
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !11 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %.loc7_26.1.temp = alloca [8 x i8], align 1, !dbg !14
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// CHECK:STDOUT: %.loc7_26.1.temp = alloca [8 x i8], align 4, !dbg !14
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// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc7_26.1.temp), !dbg !14
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// CHECK:STDOUT: call void @_ZN1CC1Ev.carbon_thunk.(ptr %.loc7_26.1.temp), !dbg !14
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// CHECK:STDOUT: ret void, !dbg !15
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@@ -198,7 +198,7 @@ fn Four() {
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// CHECK:STDOUT: ; Function Attrs: nounwind
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// CHECK:STDOUT: define void @_CG.Main() #0 !dbg !19 {
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// CHECK:STDOUT: entry:
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// CHECK:STDOUT: %.loc11_19.2.temp = alloca [8 x i8], align 1, !dbg !20
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||||
// CHECK:STDOUT: %.loc11_19.2.temp = alloca [8 x i8], align 4, !dbg !20
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc11_19.2.temp), !dbg !20
|
||||
// CHECK:STDOUT: call void @_ZN1CC1Ev.carbon_thunk_tuple.(ptr %.loc11_19.2.temp), !dbg !20
|
||||
// CHECK:STDOUT: ret void, !dbg !21
|
||||
@@ -279,7 +279,7 @@ fn Four() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [8 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %_.var = alloca [8 x i8], align 4, !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !14
|
||||
// CHECK:STDOUT: call void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.4fdc745d4b6d0e3c"(ptr %_.var), !dbg !14
|
||||
// CHECK:STDOUT: ret void, !dbg !15
|
||||
@@ -381,10 +381,10 @@ fn Four() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc8_65.1.temp = alloca [4 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %_.var.loc9 = alloca [4 x i8], align 1, !dbg !15
|
||||
// CHECK:STDOUT: %.loc12_65.1.temp = alloca [4 x i8], align 1, !dbg !16
|
||||
// CHECK:STDOUT: %_.var.loc13 = alloca [4 x i8], align 1, !dbg !17
|
||||
// CHECK:STDOUT: %.loc8_65.1.temp = alloca [4 x i8], align 4, !dbg !14
|
||||
// CHECK:STDOUT: %_.var.loc9 = alloca [4 x i8], align 4, !dbg !15
|
||||
// CHECK:STDOUT: %.loc12_65.1.temp = alloca [4 x i8], align 4, !dbg !16
|
||||
// CHECK:STDOUT: %_.var.loc13 = alloca [4 x i8], align 4, !dbg !17
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc8_65.1.temp), !dbg !14
|
||||
// CHECK:STDOUT: call void @_ZN26ImplicitlyDefaultedDefaultC1Ev.carbon_thunk.(ptr %.loc8_65.1.temp), !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var.loc9), !dbg !15
|
||||
@@ -532,7 +532,7 @@ fn Four() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CCopy.Main(ptr sret([4 x i8]) %return, ptr %c) #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc7_10.1.temp = alloca [4 x i8], align 1, !dbg !17
|
||||
// CHECK:STDOUT: %.loc7_10.1.temp = alloca [4 x i8], align 4, !dbg !17
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc7_10.1.temp), !dbg !17
|
||||
// CHECK:STDOUT: call void @_ZN4CopyC1ERKS_.carbon_thunk._(ptr %c, ptr %return), !dbg !17
|
||||
// CHECK:STDOUT: ret void, !dbg !18
|
||||
@@ -631,7 +631,7 @@ fn Four() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CF.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc7_44.1.temp = alloca [8 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %.loc7_44.1.temp = alloca [8 x i8], align 8, !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc7_44.1.temp), !dbg !14
|
||||
// CHECK:STDOUT: call void @_ZN7DerivedC1Ev.carbon_thunk.(ptr %.loc7_44.1.temp), !dbg !14
|
||||
// CHECK:STDOUT: ret void, !dbg !15
|
||||
|
||||
+3
-3
@@ -365,7 +365,7 @@ fn PassValueExpr(y: Cpp.Y) {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CTest.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %x.var = alloca [12 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %x.var = alloca [12 x i8], align 4, !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %x.var), !dbg !14
|
||||
// CHECK:STDOUT: call void @"_COp.cbe5dd53b28eb3d1:DefaultOrUnformed.Core.1cc04ab0b0144e39"(ptr %x.var), !dbg !14
|
||||
// CHECK:STDOUT: %.loc8_4.a = getelementptr inbounds nuw [12 x i8], ptr %x.var, i32 0, i32 0, !dbg !15
|
||||
@@ -484,7 +484,7 @@ fn PassValueExpr(y: Cpp.Y) {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CPassRefExpr.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %y.var = alloca [12 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %y.var = alloca [12 x i8], align 4, !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %y.var), !dbg !14
|
||||
// CHECK:STDOUT: %.loc8_4.a = getelementptr inbounds nuw [12 x i8], ptr %y.var, i32 0, i32 0, !dbg !15
|
||||
// CHECK:STDOUT: store i32 1, ptr %.loc8_4.a, align 4, !dbg !15
|
||||
@@ -513,7 +513,7 @@ fn PassValueExpr(y: Cpp.Y) {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CPassInitExpr.Main() #0 !dbg !23 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc17_24.1.temp = alloca [12 x i8], align 1, !dbg !24
|
||||
// CHECK:STDOUT: %.loc17_24.1.temp = alloca [12 x i8], align 4, !dbg !24
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc17_24.1.temp), !dbg !24
|
||||
// CHECK:STDOUT: call void @_CMake.Main(ptr %.loc17_24.1.temp), !dbg !24
|
||||
// CHECK:STDOUT: call void @_Z11pass_struct1Y.carbon_thunk._(ptr %.loc17_24.1.temp), !dbg !25
|
||||
|
||||
+4
-4
@@ -138,8 +138,8 @@ fn GetRefs() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CPassRefs.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !14
|
||||
// CHECK:STDOUT: %_.var.1 = alloca {}, align 8, !dbg !15
|
||||
// CHECK:STDOUT: %c.var = alloca {}, align 1, !dbg !14
|
||||
// CHECK:STDOUT: %_.var.1 = alloca {}, align 1, !dbg !15
|
||||
// CHECK:STDOUT: %n.var = alloca i32, align 4, !dbg !16
|
||||
// CHECK:STDOUT: %_.var.2 = alloca i32, align 4, !dbg !17
|
||||
// CHECK:STDOUT: %.loc25_23.2.temp = alloca i32, align 4, !dbg !18
|
||||
@@ -327,8 +327,8 @@ fn GetRefs() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CPassRefs.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !14
|
||||
// CHECK:STDOUT: %.loc20_18.2.temp = alloca {}, align 8, !dbg !15
|
||||
// CHECK:STDOUT: %c.var = alloca {}, align 1, !dbg !14
|
||||
// CHECK:STDOUT: %.loc20_18.2.temp = alloca {}, align 1, !dbg !15
|
||||
// CHECK:STDOUT: %n.var = alloca i32, align 4, !dbg !16
|
||||
// CHECK:STDOUT: %_.var = alloca i32, align 4, !dbg !17
|
||||
// CHECK:STDOUT: %.loc26_23.2.temp = alloca i32, align 4, !dbg !18
|
||||
|
||||
+2
-2
@@ -574,7 +574,7 @@ fn Call(x: Cpp.D) -> Cpp.C {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CLet.Main() #0 !dbg !20 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc9_27.1.temp = alloca [16 x i8], align 1, !dbg !23
|
||||
// CHECK:STDOUT: %.loc9_27.1.temp = alloca [16 x i8], align 8, !dbg !23
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc9_27.1.temp), !dbg !23
|
||||
// CHECK:STDOUT: call void @_Z4Makev.carbon_thunk.(ptr %.loc9_27.1.temp), !dbg !23
|
||||
// CHECK:STDOUT: call void @_ZN1XD1Ev(ptr %.loc9_27.1.temp), !dbg !23
|
||||
@@ -587,7 +587,7 @@ fn Call(x: Cpp.D) -> Cpp.C {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CVar.Main() #0 !dbg !25 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 1, !dbg !26
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 8, !dbg !26
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !26
|
||||
// CHECK:STDOUT: call void @_Z4Makev.carbon_thunk.(ptr %_.var), !dbg !27
|
||||
// CHECK:STDOUT: call void @_ZN1XD1Ev(ptr %_.var), !dbg !26
|
||||
|
||||
@@ -497,7 +497,7 @@ fn G() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CG.Main() #2 !dbg !41 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %c.var = alloca { i32, i32 }, align 8, !dbg !44
|
||||
// CHECK:STDOUT: %c.var = alloca { i32, i32 }, align 4, !dbg !44
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %c.var), !dbg !44
|
||||
// CHECK:STDOUT: %.loc19_29.3.a = getelementptr inbounds nuw { i32, i32 }, ptr %c.var, i32 0, i32 0, !dbg !45
|
||||
// CHECK:STDOUT: %.loc19_29.6.b = getelementptr inbounds nuw { i32, i32 }, ptr %c.var, i32 0, i32 1, !dbg !45
|
||||
|
||||
@@ -134,7 +134,7 @@ fn InitNontrivialDtor() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CInitDirectly.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 8, !dbg !14
|
||||
// CHECK:STDOUT: %.loc13_50.3.temp = alloca [3 x i32], align 4, !dbg !15
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc13_50.3.temp), !dbg !15
|
||||
@@ -166,7 +166,7 @@ fn InitNontrivialDtor() {
|
||||
// CHECK:STDOUT: define void @_CInitVectorLike.Main() #0 !dbg !32 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [1 x i8], align 1, !dbg !33
|
||||
// CHECK:STDOUT: %.loc18_36.2.temp = alloca [16 x i8], align 1, !dbg !34
|
||||
// CHECK:STDOUT: %.loc18_36.2.temp = alloca [16 x i8], align 8, !dbg !34
|
||||
// CHECK:STDOUT: %.loc18_36.4.temp = alloca [3 x i32], align 4, !dbg !34
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !33
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc18_36.2.temp), !dbg !34
|
||||
@@ -216,7 +216,7 @@ fn InitNontrivialDtor() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CInitNontrivialDtor.Main() #0 !dbg !45 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 1, !dbg !46
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 8, !dbg !46
|
||||
// CHECK:STDOUT: %.loc23_69.17.temp = alloca [3 x [1 x i8]], align 1, !dbg !47
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !46
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc23_69.17.temp), !dbg !47
|
||||
@@ -382,7 +382,7 @@ fn InitNontrivialDtor() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CInitDirectly.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 8, !dbg !14
|
||||
// CHECK:STDOUT: %.loc13_50.3.temp = alloca [3 x i32], align 4, !dbg !15
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc13_50.3.temp), !dbg !15
|
||||
@@ -414,7 +414,7 @@ fn InitNontrivialDtor() {
|
||||
// CHECK:STDOUT: define void @_CInitVectorLike.Main() #0 !dbg !32 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [1 x i8], align 1, !dbg !33
|
||||
// CHECK:STDOUT: %.loc18_36.2.temp = alloca [16 x i8], align 1, !dbg !34
|
||||
// CHECK:STDOUT: %.loc18_36.2.temp = alloca [16 x i8], align 8, !dbg !34
|
||||
// CHECK:STDOUT: %.loc18_36.4.temp = alloca [3 x i32], align 4, !dbg !34
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !33
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc18_36.2.temp), !dbg !34
|
||||
@@ -464,7 +464,7 @@ fn InitNontrivialDtor() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CInitNontrivialDtor.Main() #0 !dbg !47 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 1, !dbg !48
|
||||
// CHECK:STDOUT: %_.var = alloca [16 x i8], align 8, !dbg !48
|
||||
// CHECK:STDOUT: %.loc23_69.17.temp = alloca [3 x [1 x i8]], align 1, !dbg !49
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !48
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc23_69.17.temp), !dbg !49
|
||||
|
||||
+3
-3
@@ -269,7 +269,7 @@ fn Call3() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CCall1.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc12_12.2.temp = alloca {}, align 8, !dbg !14
|
||||
// CHECK:STDOUT: %.loc12_12.2.temp = alloca {}, align 1, !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc12_12.2.temp), !dbg !14
|
||||
// CHECK:STDOUT: call void @_Z3fooIJEEv1XDpT_.carbon_thunk._(ptr @X.val.loc12_14.3), !dbg !15
|
||||
// CHECK:STDOUT: ret void, !dbg !16
|
||||
@@ -289,7 +289,7 @@ fn Call3() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CCall2.Main() #0 !dbg !20 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc18_12.2.temp = alloca {}, align 8, !dbg !21
|
||||
// CHECK:STDOUT: %.loc18_12.2.temp = alloca {}, align 1, !dbg !21
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc18_12.2.temp), !dbg !21
|
||||
// CHECK:STDOUT: call void @_Z3fooIJiEEv1XDpT_.carbon_thunk.__(ptr @X.val.loc12_14.3, i32 2), !dbg !22
|
||||
// CHECK:STDOUT: ret void, !dbg !23
|
||||
@@ -312,7 +312,7 @@ fn Call3() {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CCall3.Main() #0 !dbg !24 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %.loc24_12.2.temp = alloca {}, align 8, !dbg !25
|
||||
// CHECK:STDOUT: %.loc24_12.2.temp = alloca {}, align 1, !dbg !25
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %.loc24_12.2.temp), !dbg !25
|
||||
// CHECK:STDOUT: call void @_Z3fooIJiiEEv1XDpT_.carbon_thunk.___(ptr @X.val.loc12_14.3, i32 2, i32 3), !dbg !26
|
||||
// CHECK:STDOUT: ret void, !dbg !27
|
||||
|
||||
@@ -111,7 +111,7 @@ fn AccessD(d: Cpp.D) -> i32 {
|
||||
// CHECK:STDOUT: ; Function Attrs: nounwind
|
||||
// CHECK:STDOUT: define void @_CMake.Main() #0 !dbg !11 {
|
||||
// CHECK:STDOUT: entry:
|
||||
// CHECK:STDOUT: %_.var = alloca [40 x i8], align 1, !dbg !14
|
||||
// CHECK:STDOUT: %_.var = alloca [40 x i8], align 8, !dbg !14
|
||||
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(ptr %_.var), !dbg !14
|
||||
// CHECK:STDOUT: call void @_ZN1DC1Ev.carbon_thunk.(ptr %_.var), !dbg !15
|
||||
// CHECK:STDOUT: ret void, !dbg !16
|
||||
|
||||
Reference in New Issue
Block a user