diff options
Diffstat (limited to 'llvm/test/Transforms')
| -rw-r--r-- | llvm/test/Transforms/MergeFunc/mergefunc-struct-return.ll | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/llvm/test/Transforms/MergeFunc/mergefunc-struct-return.ll b/llvm/test/Transforms/MergeFunc/mergefunc-struct-return.ll new file mode 100644 index 00000000000..d2cbe43da0c --- /dev/null +++ b/llvm/test/Transforms/MergeFunc/mergefunc-struct-return.ll @@ -0,0 +1,40 @@ +; RUN: opt -mergefunc -S < %s | FileCheck %s + +; This test makes sure that the mergefunc pass, uses extract and insert value +; to convert the struct result type; as struct types cannot be bitcast. + +target datalayout = "e-m:w-p:32:32-i64:64-f80:32-n8:16:32-S32" + +%kv1 = type { i32*, i32* } +%kv2 = type { i8*, i8* } + +declare void @noop() + +define %kv1 @fn1() { +; CHECK-LABEL: @fn1( + %tmp = alloca %kv1 + %v1 = getelementptr %kv1* %tmp, i32 0, i32 0 + store i32* null, i32** %v1 + %v2 = getelementptr %kv1* %tmp, i32 0, i32 0 + store i32* null, i32** %v2 + call void @noop() + %v3 = load %kv1* %tmp + ret %kv1 %v3 +} + +define %kv2 @fn2() { +; CHECK-LABEL: @fn2( +; CHECK: %1 = tail call %kv1 @fn1() +; CHECK: %2 = extractvalue %kv1 %1, 0 +; CHECK: %3 = bitcast i32* %2 to i8* +; CHECK: %4 = insertvalue %kv2 undef, i8* %3, 0 + %tmp = alloca %kv2 + %v1 = getelementptr %kv2* %tmp, i32 0, i32 0 + store i8* null, i8** %v1 + %v2 = getelementptr %kv2* %tmp, i32 0, i32 0 + store i8* null, i8** %v2 + call void @noop() + + %v3 = load %kv2* %tmp + ret %kv2 %v3 +} |
