AMDGPU : Replace FMAD with FMA when denormals are enabled.
Differential Revision: http://reviews.llvm.org/D29958
llvm-svn: 296186
diff --git a/llvm/lib/Target/AMDGPU/SIInstructions.td b/llvm/lib/Target/AMDGPU/SIInstructions.td
index 77a61b0..bd7c9dd 100644
--- a/llvm/lib/Target/AMDGPU/SIInstructions.td
+++ b/llvm/lib/Target/AMDGPU/SIInstructions.td
@@ -508,6 +508,16 @@
defm : FMADPat <f16, V_MAC_F16_e64>;
defm : FMADPat <f32, V_MAC_F32_e64>;
+class FMADModsPat<Instruction inst, SDPatternOperator mad_opr> : Pat<
+ (f32 (mad_opr (VOP3Mods f32:$src0, i32:$src0_mod),
+ (VOP3Mods f32:$src1, i32:$src1_mod),
+ (VOP3Mods f32:$src2, i32:$src2_mod))),
+ (inst $src0_mod, $src0, $src1_mod, $src1,
+ $src2_mod, $src2, DSTCLAMP.NONE, DSTOMOD.NONE)
+>;
+
+def : FMADModsPat<V_MAD_F32, AMDGPUfmad_ftz>;
+
multiclass SelectPat <ValueType vt, Instruction inst> {
def : Pat <
(vt (select i1:$src0, vt:$src1, vt:$src2)),