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Include a fingerprint of the specific arguments in mangled names. (#4771)

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Instead of including the raw index of the specific, which is unstable
across files and across unrelated changes, use a fingerprint of the
constant values of the specific arguments. This is a placeholder until
we decide on how we want to mangle specific functions.
This commit is contained in:
Richard Smith
2025-01-08 20:23:12 +00:00
committed by GitHub
parent ab12da7d03
commit 9a5f2d734b
6 changed files with 76 additions and 25 deletions
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toolchain/lower/testdata/function/generic/call_method.carbon
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+2 -2
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@@ -34,7 +34,7 @@ fn CallF() -> i32 {
// CHECK:STDOUT: call void @llvm.lifetime.start.p0(i64 4, ptr %n.var), !dbg !7
// CHECK:STDOUT: store i32 0, ptr %n.var, align 4, !dbg !9
// CHECK:STDOUT: %.loc20_14 = load i32, ptr %n.var, align 4, !dbg !10
// CHECK:STDOUT: %F.call = call i32 @_CF.C.Main.129(ptr %c.var, i32 %.loc20_14), !dbg !11
// CHECK:STDOUT: %F.call = call i32 @_CF.C.Main.9b813875c98e31f1(ptr %c.var, i32 %.loc20_14), !dbg !11
// CHECK:STDOUT: ret i32 %F.call, !dbg !12
// CHECK:STDOUT: }
// CHECK:STDOUT:
@@ -44,7 +44,7 @@ fn CallF() -> i32 {
// CHECK:STDOUT: ; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
// CHECK:STDOUT: declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #1
// CHECK:STDOUT:
// CHECK:STDOUT: declare i32 @_CF.C.Main.129(ptr, i32)
// CHECK:STDOUT: declare i32 @_CF.C.Main.9b813875c98e31f1(ptr, i32)
// CHECK:STDOUT:
// CHECK:STDOUT: ; uselistorder directives
// CHECK:STDOUT: uselistorder ptr @llvm.lifetime.start.p0, { 1, 0 }