diff options
Diffstat (limited to 'test/CodeGen/NVPTX/intrin-nocapture.ll')
| -rw-r--r-- | test/CodeGen/NVPTX/intrin-nocapture.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/NVPTX/intrin-nocapture.ll b/test/CodeGen/NVPTX/intrin-nocapture.ll new file mode 100644 index 0000000000..55781bb15a --- /dev/null +++ b/test/CodeGen/NVPTX/intrin-nocapture.ll @@ -0,0 +1,21 @@ +; RUN: opt < %s -O3 -S | FileCheck %s + +; Address space intrinsics were erroneously marked NoCapture, leading to bad +; optimizations (such as the store below being eliminated as dead code). This +; test makes sure we don't regress. + +declare void @foo(i32 addrspace(1)*) + +declare i32 addrspace(1)* @llvm.nvvm.ptr.gen.to.global.p1i32.p0i32(i32*) + +; CHECK: @bar +define void @bar() { + %t1 = alloca i32 +; CHECK: call i32 addrspace(1)* @llvm.nvvm.ptr.gen.to.global.p1i32.p0i32(i32* %t1) +; CHECK-NEXT: store i32 10, i32* %t1 + %t2 = call i32 addrspace(1)* @llvm.nvvm.ptr.gen.to.global.p1i32.p0i32(i32* %t1) + store i32 10, i32* %t1 + call void @foo(i32 addrspace(1)* %t2) + ret void +} + |