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667d4f4107
We would previously drop the COMDAT on the thunk we generated when replacing a function body with the forwarding thunk. This would result in a function that may have been multiply emitted and multiply merged to be emitted with the same name without the COMDAT. This is a hard error with PE/COFF where the COMDAT is used for the deduplication of Value Witness functions for Swift. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358728 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
658 B
LLVM
25 lines
658 B
LLVM
; RUN: opt -S -mergefunc %s | FileCheck %s
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@symbols = linkonce_odr global <{ i8*, i8* }> <{ i8* bitcast (i32 (i32, i32)* @f to i8*), i8* bitcast (i32 (i32, i32)* @g to i8*) }>
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$f = comdat any
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$g = comdat any
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define linkonce_odr hidden i32 @f(i32 %x, i32 %y) comdat {
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%sum = add i32 %x, %y
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%sum2 = add i32 %x, %sum
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%sum3 = add i32 %x, %sum
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ret i32 %sum3
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}
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define linkonce_odr hidden i32 @g(i32 %x, i32 %y) comdat {
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%sum = add i32 %x, %y
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%sum2 = add i32 %x, %sum
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%sum3 = add i32 %x, %sum
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ret i32 %sum3
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}
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; CHECK-DAG: define linkonce_odr hidden i32 @f(i32 %x, i32 %y) comdat
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; CHECK-DAG: define linkonce_odr hidden i32 @g(i32, i32) comdat
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