diff options
Diffstat (limited to 'test/CodeGen/NVPTX/ldu-i8.ll')
-rw-r--r-- | test/CodeGen/NVPTX/ldu-i8.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/NVPTX/ldu-i8.ll b/test/CodeGen/NVPTX/ldu-i8.ll new file mode 100644 index 0000000..81a82b2 --- /dev/null +++ b/test/CodeGen/NVPTX/ldu-i8.ll @@ -0,0 +1,14 @@ +; RUN: llc < %s -march=nvptx -mcpu=sm_20 | FileCheck %s + +target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64" + +declare i8 @llvm.nvvm.ldu.global.i.i8(i8*) + +define i8 @foo(i8* %a) { +; Ensure we properly truncate off the high-order 24 bits +; CHECK: ldu.global.u8 +; CHECK: cvt.u32.u16 +; CHECK: and.b32 %r{{[0-9]+}}, %r{{[0-9]+}}, 255 + %val = tail call i8 @llvm.nvvm.ldu.global.i.i8(i8* %a) + ret i8 %val +} |