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| author | Tom Stellard <thomas.stellard@amd.com> | 2014-01-22 19:24:19 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2014-01-22 19:24:19 +0000 |
| commit | 655ba251b50346262bee125d6fb29bb086a883d2 (patch) | |
| tree | 668553976bf6f9224bbf5712edd58d91f60f0280 /test | |
| parent | 7dd37ae57a00f1c664b9ae0e9451c1717cf5348d (diff) | |
| download | llvm-655ba251b50346262bee125d6fb29bb086a883d2.tar.gz llvm-655ba251b50346262bee125d6fb29bb086a883d2.tar.bz2 llvm-655ba251b50346262bee125d6fb29bb086a883d2.tar.xz | |
R600: Begin private memory at the second GPR.
This way private memory does not over-write work group information
stored in GPRs 0 and 1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199824 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/CodeGen/R600/private-memory.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/CodeGen/R600/private-memory.ll b/test/CodeGen/R600/private-memory.ll index 3fd67d75bb..b25fc7ba57 100644 --- a/test/CodeGen/R600/private-memory.ll +++ b/test/CodeGen/R600/private-memory.ll @@ -156,3 +156,28 @@ entry: ret void } + +; Make sure we don't overwrite workitem information with private memory + +; FUNC-LABEL: @work_item_info +; R600-CHECK-NOT: MOV T0.X +; Additional check in case the move ends up in the last slot +; R600-CHECK-NOT: MOV * TO.X + +; SI-CHECK-NOT: V_MOV_B32_e{{(32|64)}} v0 +define void @work_item_info(i32 addrspace(1)* %out, i32 %in) { +entry: + %0 = alloca [2 x i32] + %1 = getelementptr [2 x i32]* %0, i32 0, i32 0 + %2 = getelementptr [2 x i32]* %0, i32 0, i32 1 + store i32 0, i32* %1 + store i32 1, i32* %2 + %3 = getelementptr [2 x i32]* %0, i32 0, i32 %in + %4 = load i32* %3 + %5 = call i32 @llvm.r600.read.tidig.x() + %6 = add i32 %4, %5 + store i32 %6, i32 addrspace(1)* %out + ret void +} + +declare i32 @llvm.r600.read.tidig.x() nounwind readnone |