diff options
| author | Marek Olšák <[email protected]> | 2017-02-16 22:52:53 +0100 |
|---|---|---|
| committer | Marek Olšák <[email protected]> | 2017-02-18 02:58:43 +0100 |
| commit | 675ef9c0c7d178438f0901e3c13c381828b3c139 (patch) | |
| tree | 3568b848824a2a6e0f0c7c1a685f288d46339430 /src | |
| parent | 660b55e6d9aa704022476a50e264e56ecaa3fc2d (diff) | |
ac/llvm: use min+max instead of AMDGPU.clamp on LLVM 5.0
It selects v_med3_f32, which has the same rate & size.
Reviewed-by: Dave Airlie <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/amd/common/ac_llvm_build.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/amd/common/ac_llvm_build.c b/src/amd/common/ac_llvm_build.c index 351ff88306e..2f25b1400e8 100644 --- a/src/amd/common/ac_llvm_build.c +++ b/src/amd/common/ac_llvm_build.c @@ -817,6 +817,23 @@ ac_emit_umsb(struct ac_llvm_context *ctx, LLVMValueRef ac_emit_clamp(struct ac_llvm_context *ctx, LLVMValueRef value) { + if (HAVE_LLVM >= 0x0500) { + LLVMValueRef max[2] = { + value, + LLVMConstReal(ctx->f32, 0), + }; + LLVMValueRef min[2] = { + LLVMConstReal(ctx->f32, 1), + }; + + min[1] = ac_emit_llvm_intrinsic(ctx, "llvm.maxnum.f32", + ctx->f32, max, 2, + AC_FUNC_ATTR_READNONE); + return ac_emit_llvm_intrinsic(ctx, "llvm.minnum.f32", + ctx->f32, min, 2, + AC_FUNC_ATTR_READNONE); + } + const char *intr = HAVE_LLVM >= 0x0308 ? "llvm.AMDGPU.clamp." : "llvm.AMDIL.clamp."; LLVMValueRef args[3] = { |