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| author | Tom Stellard <thomas.stellard@amd.com> | 2013-03-08 15:37:09 +0000 |
|---|---|---|
| committer | Tom Stellard <thomas.stellard@amd.com> | 2013-03-08 15:37:09 +0000 |
| commit | 1454cb86be54a8703fca396752be71c50c805b88 (patch) | |
| tree | 4db8262b78df8a49e769c1f096ba9d6c948331b4 /test/CodeGen/R600/selectcc-opt.ll | |
| parent | d41650590669bf561d8f3bcae1204f11354954dc (diff) | |
| download | llvm-1454cb86be54a8703fca396752be71c50c805b88.tar.gz llvm-1454cb86be54a8703fca396752be71c50c805b88.tar.bz2 llvm-1454cb86be54a8703fca396752be71c50c805b88.tar.xz | |
R600: Improve custom lowering of select_cc
Two changes:
1. Prefer SET* instructions when possible
2. Handle the CND*_INT case with floating-point args
Reviewed-by: Christian König <christian.koenig@amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176699 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/R600/selectcc-opt.ll')
| -rw-r--r-- | test/CodeGen/R600/selectcc-opt.ll | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/test/CodeGen/R600/selectcc-opt.ll b/test/CodeGen/R600/selectcc-opt.ll new file mode 100644 index 0000000000..c7993f547d --- /dev/null +++ b/test/CodeGen/R600/selectcc-opt.ll @@ -0,0 +1,37 @@ +; RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s + +; CHECK: @test_a +; CHECK-NOT: CND +; CHECK: SET{{[NEQGTL]+}}_DX10 + +define void @test_a(i32 addrspace(1)* %out, float %in) { +entry: + %0 = fcmp ult float %in, 0.000000e+00 + %1 = select i1 %0, float 1.000000e+00, float 0.000000e+00 + %2 = fsub float -0.000000e+00, %1 + %3 = fptosi float %2 to i32 + %4 = bitcast i32 %3 to float + %5 = bitcast float %4 to i32 + %6 = icmp ne i32 %5, 0 + br i1 %6, label %IF, label %ENDIF + +IF: + %7 = getelementptr i32 addrspace(1)* %out, i32 1 + store i32 0, i32 addrspace(1)* %7 + br label %ENDIF + +ENDIF: + store i32 0, i32 addrspace(1)* %out + ret void +} + +; Test a CND*_INT instruction with float true/false values +; CHECK: @test_b +; CHECK: CND{{[GTE]+}}_INT +define void @test_b(float addrspace(1)* %out, i32 %in) { +entry: + %0 = icmp sgt i32 %in, 0 + %1 = select i1 %0, float 2.0, float 3.0 + store float %1, float addrspace(1)* %out + ret void +} |