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| author | Tom Stellard <thomas.stellard@amd.com> | 2013-09-05 18:38:03 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2013-09-05 18:38:03 +0000 |
| commit | 756f382ac116d1d935fe5c01f2c07c19c0aac77a (patch) | |
| tree | 8eafc58e30e23cf8eeb1558784ba2c6c1c318a35 /test/CodeGen/R600 | |
| parent | 470c451574609adcaab9b279cc74c6ff0f91b00f (diff) | |
| download | external_llvm-756f382ac116d1d935fe5c01f2c07c19c0aac77a.zip external_llvm-756f382ac116d1d935fe5c01f2c07c19c0aac77a.tar.gz external_llvm-756f382ac116d1d935fe5c01f2c07c19c0aac77a.tar.bz2 | |
R600: Expand SELECT nodes rather than custom lowering them
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190079 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/R600')
| -rw-r--r-- | test/CodeGen/R600/select.ll | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/test/CodeGen/R600/select.ll b/test/CodeGen/R600/select.ll new file mode 100644 index 0000000..f940142 --- /dev/null +++ b/test/CodeGen/R600/select.ll @@ -0,0 +1,46 @@ +; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s + +; Normally icmp + select is optimized to select_cc, when this happens the +; DAGLegalizer never sees the select and doesn't have a chance to leaglize it. +; +; In order to avoid the select_cc optimization, this test case calculates the +; condition for the select in a separate basic block. + +; CHECK-LABEL: @select +; CHECK-DAG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.X +; CHECK-DAG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.X +; CHECK-DAG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.XY +; CHECK-DAG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.XY +; CHECK-DAG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.XYZW +; CHECK-DAG: MEM_RAT_CACHELESS STORE_RAW T{{[0-9]+}}.XYZW +define void @select (i32 addrspace(1)* %i32out, float addrspace(1)* %f32out, + <2 x i32> addrspace(1)* %v2i32out, <2 x float> addrspace(1)* %v2f32out, + <4 x i32> addrspace(1)* %v4i32out, <4 x float> addrspace(1)* %v4f32out, + i32 %cond) { +entry: + br label %for +body: + %inc = add i32 %i, 1 + %br_cmp.i = icmp eq i1 %br_cmp, 0 + br label %for +for: + %i = phi i32 [ %inc, %body], [ 0, %entry ] + %br_cmp = phi i1 [ %br_cmp.i, %body ], [ 0, %entry ] + %0 = icmp eq i32 %cond, %i + %1 = select i1 %br_cmp, i32 2, i32 3 + %2 = select i1 %br_cmp, float 2.0 , float 5.0 + %3 = select i1 %br_cmp, <2 x i32> <i32 2, i32 3>, <2 x i32> <i32 4, i32 5> + %4 = select i1 %br_cmp, <2 x float> <float 2.0, float 3.0>, <2 x float> <float 4.0, float 5.0> + %5 = select i1 %br_cmp, <4 x i32> <i32 2 , i32 3, i32 4, i32 5>, <4 x i32> <i32 6, i32 7, i32 8, i32 9> + %6 = select i1 %br_cmp, <4 x float> <float 2.0, float 3.0, float 4.0, float 5.0>, <4 x float> <float 6.0, float 7.0, float 8.0, float 9.0> + br i1 %0, label %body, label %done + +done: + store i32 %1, i32 addrspace(1)* %i32out + store float %2, float addrspace(1)* %f32out + store <2 x i32> %3, <2 x i32> addrspace(1)* %v2i32out + store <2 x float> %4, <2 x float> addrspace(1)* %v2f32out + store <4 x i32> %5, <4 x i32> addrspace(1)* %v4i32out + store <4 x float> %6, <4 x float> addrspace(1)* %v4f32out + ret void +} |