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MergeFuncs: Transfer the function parameter attributes to the call site

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rdar://21516488

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242558 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Arnold Schwaighofer 2015-07-17 18:59:08 +00:00
parent 6624afccc6
commit beda80e3bb
4 changed files with 25 additions and 2 deletions
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1
lib/Transforms/IPO/MergeFunctions.cpp
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@ -1361,6 +1361,7 @@ void MergeFunctions::writeThunk(Function *F, Function *G) {
CallInst *CI = Builder.CreateCall(F, Args);
CI->setTailCall();
CI->setCallingConv(F->getCallingConv());
CI->setAttributes(F->getAttributes());
if (NewG->getReturnType()->isVoidTy()) {
Builder.CreateRetVoid();
} else {

22
test/Transforms/MergeFunc/apply_function_attributes.ll Normal file
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@ -0,0 +1,22 @@
; RUN: opt -S -mergefunc < %s | FileCheck %s
%Si = type <{ i32 }>
define void @sum(%Si* noalias sret %a, i32 %x, i32 %y) {
%sum = add i32 %x, %y
%sum2 = add i32 %sum, %y
%sum3 = add i32 %sum2, %y
ret void
}
define void @add(%Si* noalias sret %a, i32 %x, i32 %y) {
%sum = add i32 %x, %y
%sum2 = add i32 %sum, %y
%sum3 = add i32 %sum2, %y
ret void
}
; Make sure we transfer the parameter attributes to the call site.
; CHECK-LABEL: define void @sum(%Si* noalias sret, i32, i32)
; CHECK: tail call void @add(%Si* noalias sret %{{.*}}, i32 %{{.*}}, i32 %{{.*}})
; CHECK: ret void

2
test/Transforms/MergeFunc/inttoptr-address-space.ll
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@ -21,7 +21,7 @@ define internal i8* @func35(%.qux.2585 addrspace(1)* nocapture %this) align 2 {
bb:
; CHECK-LABEL: @func35(
; CHECK: %[[V2:.+]] = bitcast %.qux.2585 addrspace(1)* %{{.*}} to %.qux.2496 addrspace(1)*
; CHECK: %[[V3:.+]] = tail call i32 @func10(%.qux.2496 addrspace(1)* %[[V2]])
; CHECK: %[[V3:.+]] = tail call i32 @func10(%.qux.2496 addrspace(1)* nocapture %[[V2]])
; CHECK: %{{.*}} = inttoptr i32 %[[V3]] to i8*
%tmp = getelementptr inbounds %.qux.2585, %.qux.2585 addrspace(1)* %this, i32 0, i32 2
%tmp1 = load i8*, i8* addrspace(1)* %tmp, align 4

2
test/Transforms/MergeFunc/inttoptr.ll
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@ -48,7 +48,7 @@ define internal i8* @func35(%.qux.2585* nocapture %this) align 2 {
bb:
; CHECK-LABEL: @func35(
; CHECK: %[[V2:.+]] = bitcast %.qux.2585* %{{.*}} to %.qux.2496*
; CHECK: %[[V3:.+]] = tail call i32 @func10(%.qux.2496* %[[V2]])
; CHECK: %[[V3:.+]] = tail call i32 @func10(%.qux.2496* nocapture %[[V2]])
; CHECK: %{{.*}} = inttoptr i32 %[[V3]] to i8*
%tmp = getelementptr inbounds %.qux.2585, %.qux.2585* %this, i32 0, i32 2
%tmp1 = load i8*, i8** %tmp, align 4