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a5aae48d17
We insert a bitcast which obfuscates the getCalledFunction for the utility function which looks up attributes from the called function. Loosing ABI changing parameter attributes is a bad thing. rdar://21516488 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242807 91177308-0d34-0410-b5e6-96231b3b80d8
41 lines
1.1 KiB
LLVM
41 lines
1.1 KiB
LLVM
; RUN: opt -S -mergefunc < %s | FileCheck %s
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%Opaque_type = type opaque
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%S2i = type <{ i64, i64 }>
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%D2i = type <{ i64, i64 }>
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%Di = type <{ i32 }>
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%Si = type <{ i32 }>
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define void @B(%Opaque_type* sret %a, %S2i* %b, i32* %xp, i32* %yp) {
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%x = load i32, i32* %xp
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%y = load i32, i32* %yp
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%sum = add i32 %x, %y
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%sum2 = add i32 %sum, %y
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%sum3 = add i32 %sum2, %y
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ret void
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}
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define void @C(%Opaque_type* sret %a, %S2i* %b, i32* %xp, i32* %yp) {
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%x = load i32, i32* %xp
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%y = load i32, i32* %yp
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%sum = add i32 %x, %y
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%sum2 = add i32 %sum, %y
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%sum3 = add i32 %sum2, %y
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ret void
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}
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define void @A(%Opaque_type* sret %a, %D2i* %b, i32* %xp, i32* %yp) {
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%x = load i32, i32* %xp
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%y = load i32, i32* %yp
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%sum = add i32 %x, %y
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%sum2 = add i32 %sum, %y
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%sum3 = add i32 %sum2, %y
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ret void
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}
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; Make sure we transfer the parameter attributes to the call site.
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; CHECK-LABEL: define void @C(%Opaque_type* sret
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; CHECK: tail call void bitcast (void (%Opaque_type*, %D2i*, i32*, i32*)* @A to void (%Opaque_type*, %S2i*, i32*, i32*)*)(%Opaque_type* sret %0, %S2i* %1, i32* %2, i32* %3)
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; CHECK: ret void
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