diff options
Diffstat (limited to 'llvm/lib/Target/AMDGPU/VOPCInstructions.td')
| -rw-r--r-- | llvm/lib/Target/AMDGPU/VOPCInstructions.td | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/llvm/lib/Target/AMDGPU/VOPCInstructions.td b/llvm/lib/Target/AMDGPU/VOPCInstructions.td index 39d18794f947..aa2fa260e7b5 100644 --- a/llvm/lib/Target/AMDGPU/VOPCInstructions.td +++ b/llvm/lib/Target/AMDGPU/VOPCInstructions.td @@ -1,4 +1,4 @@ -//===-- VOPCInstructions.td - Vector Instruction Defintions ---------------===// +//===-- VOPCInstructions.td - Vector Instruction Definitions --------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. @@ -92,9 +92,11 @@ class VOPC_Pseudo <string opName, VOPC_Profile P, list<dag> pattern=[], let mayStore = 0; let hasSideEffects = 0; + let ReadsModeReg = isFloatType<P.Src0VT>.ret; + let VALU = 1; let VOPC = 1; - let Uses = [EXEC]; + let Uses = !if(ReadsModeReg, [MODE, EXEC], [EXEC]); let Defs = !if(DefVcc, [VCC], []); VOPProfile Pfl = P; @@ -738,6 +740,9 @@ multiclass VOPC_CLASS_F64 <string opName> : multiclass VOPCX_CLASS_F64 <string opName> : VOPCX_Class_Pseudos <opName, VOPC_I1_F64_I32, VOPC_F64_I32>; +// cmp_class ignores the FP mode and faithfully reports the unmodified +// source value. +let ReadsModeReg = 0, mayRaiseFPException = 0 in { defm V_CMP_CLASS_F32 : VOPC_CLASS_F32 <"v_cmp_class_f32">; defm V_CMPX_CLASS_F32 : VOPCX_CLASS_F32 <"v_cmpx_class_f32">; defm V_CMP_CLASS_F64 : VOPC_CLASS_F64 <"v_cmp_class_f64">; @@ -747,6 +752,7 @@ let SubtargetPredicate = Has16BitInsts in { defm V_CMP_CLASS_F16 : VOPC_CLASS_F16 <"v_cmp_class_f16">; defm V_CMPX_CLASS_F16 : VOPCX_CLASS_F16 <"v_cmpx_class_f16">; } +} // End ReadsModeReg = 0, mayRaiseFPException = 0 //===----------------------------------------------------------------------===// // V_ICMPIntrinsic Pattern. |