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Fix debug location for variable allocas and lifetime markers. (#5432)

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`IRBuilderBase::SetInsertPoint` weirdly replaces our debug location with
one copied from the new insertion point, so undo its damage after
calling it.

Also included: a couple of cleanups I made while tracking this down.
This commit is contained in:
Richard Smith
2025-05-06 21:26:59 +00:00
committed by GitHub
parent 7b9ec95118
commit 32e68cfb5b
33 changed files with 1511 additions and 1452 deletions
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toolchain/lower/testdata/function/generic/call_method.carbon
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+2 -2
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@@ -28,10 +28,10 @@ fn CallF() -> i32 {
// CHECK:STDOUT: define i32 @_CCallF.Main() !dbg !4 {
// CHECK:STDOUT: entry:
// CHECK:STDOUT: %c.var = alloca {}, align 8, !dbg !7
// CHECK:STDOUT: %n.var = alloca i32, align 4, !dbg !7
// CHECK:STDOUT: %n.var = alloca i32, align 4, !dbg !8
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 0, ptr %c.var), !dbg !7
// CHECK:STDOUT: call void @llvm.memcpy.p0.p0.i64(ptr align 1 %c.var, ptr align 1 @C.val.loc18_3.2, i64 0, i1 false), !dbg !7
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %n.var), !dbg !7
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %n.var), !dbg !8
// CHECK:STDOUT: store i32 0, ptr %n.var, align 4, !dbg !8
// CHECK:STDOUT: %.loc20_14 = load i32, ptr %n.var, align 4, !dbg !9
// CHECK:STDOUT: %F.call = call i32 @_CF.C.Main.b88d1103f417c6d4(ptr %c.var, i32 %.loc20_14), !dbg !10