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| author | Vincent Lejeune <vljn@ovi.com> | 2013-02-14 16:57:19 +0000 |
|---|---|---|
| committer | Vincent Lejeune <vljn@ovi.com> | 2013-02-14 16:57:19 +0000 |
| commit | 786788573729899a236851320c5680da8c161ec1 (patch) | |
| tree | f7212f93fa2b6f460257d495cca3532c9fe26771 /test/CodeGen/R600/kcache-fold.ll | |
| parent | f846add9adf0752e552cb98fd0ba5dae791e4c3b (diff) | |
| download | llvm-786788573729899a236851320c5680da8c161ec1.tar.gz llvm-786788573729899a236851320c5680da8c161ec1.tar.bz2 llvm-786788573729899a236851320c5680da8c161ec1.tar.xz | |
R600: Do not fold single instruction with more that 3 kcache read
It fixes around 100 tfb piglit tests and 16 glean tests.
NOTE: This is a candidate for the Mesa stable branch.
Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@175183 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/R600/kcache-fold.ll')
| -rw-r--r-- | test/CodeGen/R600/kcache-fold.ll | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/CodeGen/R600/kcache-fold.ll b/test/CodeGen/R600/kcache-fold.ll new file mode 100644 index 0000000000..382f78c77d --- /dev/null +++ b/test/CodeGen/R600/kcache-fold.ll @@ -0,0 +1,52 @@ +;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s + +; CHECK: MOV T{{[0-9]+\.[XYZW], CBuf0\[[0-9]+\]\.[XYZW]}} + +define void @main() { +main_body: + %0 = load <4 x float> addrspace(9)* null + %1 = extractelement <4 x float> %0, i32 0 + %2 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 1) + %3 = extractelement <4 x float> %2, i32 0 + %4 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 2) + %5 = extractelement <4 x float> %4, i32 0 + %6 = fcmp ult float %1, 0.000000e+00 + %7 = select i1 %6, float %3, float %5 + %8 = load <4 x float> addrspace(9)* null + %9 = extractelement <4 x float> %8, i32 1 + %10 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 1) + %11 = extractelement <4 x float> %10, i32 1 + %12 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 2) + %13 = extractelement <4 x float> %12, i32 1 + %14 = fcmp ult float %9, 0.000000e+00 + %15 = select i1 %14, float %11, float %13 + %16 = load <4 x float> addrspace(9)* null + %17 = extractelement <4 x float> %16, i32 2 + %18 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 1) + %19 = extractelement <4 x float> %18, i32 2 + %20 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 2) + %21 = extractelement <4 x float> %20, i32 2 + %22 = fcmp ult float %17, 0.000000e+00 + %23 = select i1 %22, float %19, float %21 + %24 = load <4 x float> addrspace(9)* null + %25 = extractelement <4 x float> %24, i32 3 + %26 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 1) + %27 = extractelement <4 x float> %26, i32 3 + %28 = load <4 x float> addrspace(9)* getelementptr ([1024 x <4 x float>] addrspace(9)* null, i64 0, i32 2) + %29 = extractelement <4 x float> %28, i32 3 + %30 = fcmp ult float %25, 0.000000e+00 + %31 = select i1 %30, float %27, float %29 + %32 = call float @llvm.AMDIL.clamp.(float %7, float 0.000000e+00, float 1.000000e+00) + %33 = call float @llvm.AMDIL.clamp.(float %15, float 0.000000e+00, float 1.000000e+00) + %34 = call float @llvm.AMDIL.clamp.(float %23, float 0.000000e+00, float 1.000000e+00) + %35 = call float @llvm.AMDIL.clamp.(float %31, float 0.000000e+00, float 1.000000e+00) + %36 = insertelement <4 x float> undef, float %32, i32 0 + %37 = insertelement <4 x float> %36, float %33, i32 1 + %38 = insertelement <4 x float> %37, float %34, i32 2 + %39 = insertelement <4 x float> %38, float %35, i32 3 + call void @llvm.R600.store.swizzle(<4 x float> %39, i32 0, i32 0) + ret void +} + +declare float @llvm.AMDIL.clamp.(float, float, float) readnone +declare void @llvm.R600.store.swizzle(<4 x float>, i32, i32) |