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GlobalISel: Implement widenScalar for saturating add/sub

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Add a placeholder legality rule for AMDGPU until the rest of the
actions are handled.
This commit is contained in:
Matt Arsenault 2020-07-12 13:58:53 -04:00
parent 3ca73de82f
commit 7c23dafb52
7 changed files with 315 additions and 72 deletions
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2
include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
View File

@ -163,6 +163,8 @@ private:
widenScalarExtract(MachineInstr &MI, unsigned TypeIdx, LLT WideTy);
LegalizeResult
widenScalarInsert(MachineInstr &MI, unsigned TypeIdx, LLT WideTy);
LegalizeResult widenScalarAddSubSat(MachineInstr &MI, unsigned TypeIdx,
LLT WideTy);
/// Helper function to split a wide generic register into bitwise blocks with
/// the given Type (which implies the number of blocks needed). The generic

43
lib/CodeGen/GlobalISel/LegalizerHelper.cpp
View File

@ -1638,6 +1638,44 @@ LegalizerHelper::widenScalarInsert(MachineInstr &MI, unsigned TypeIdx,
return Legalized;
}
LegalizerHelper::LegalizeResult
LegalizerHelper::widenScalarAddSubSat(MachineInstr &MI, unsigned TypeIdx,
LLT WideTy) {
bool IsSigned = MI.getOpcode() == TargetOpcode::G_SADDSAT ||
MI.getOpcode() == TargetOpcode::G_SSUBSAT;
// We can convert this to:
// 1. Any extend iN to iM
// 2. SHL by M-N
// 3. [US][ADD|SUB]SAT
// 4. L/ASHR by M-N
//
// It may be more efficient to lower this to a min and a max operation in
// the higher precision arithmetic if the promoted operation isn't legal,
// but this decision is up to the target's lowering request.
Register DstReg = MI.getOperand(0).getReg();
unsigned NewBits = WideTy.getScalarSizeInBits();
unsigned SHLAmount = NewBits - MRI.getType(DstReg).getScalarSizeInBits();
auto LHS = MIRBuilder.buildAnyExt(WideTy, MI.getOperand(1));
auto RHS = MIRBuilder.buildAnyExt(WideTy, MI.getOperand(2));
auto ShiftK = MIRBuilder.buildConstant(WideTy, SHLAmount);
auto ShiftL = MIRBuilder.buildShl(WideTy, LHS, ShiftK);
auto ShiftR = MIRBuilder.buildShl(WideTy, RHS, ShiftK);
auto WideInst = MIRBuilder.buildInstr(MI.getOpcode(), {WideTy},
{ShiftL, ShiftR}, MI.getFlags());
// Use a shift that will preserve the number of sign bits when the trunc is
// folded away.
auto Result = IsSigned ? MIRBuilder.buildAShr(WideTy, WideInst, ShiftK)
: MIRBuilder.buildLShr(WideTy, WideInst, ShiftK);
MIRBuilder.buildTrunc(DstReg, Result);
MI.eraseFromParent();
return Legalized;
}
LegalizerHelper::LegalizeResult
LegalizerHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx, LLT WideTy) {
switch (MI.getOpcode()) {
@ -1674,6 +1712,11 @@ LegalizerHelper::widenScalar(MachineInstr &MI, unsigned TypeIdx, LLT WideTy) {
MI.eraseFromParent();
return Legalized;
}
case TargetOpcode::G_SADDSAT:
case TargetOpcode::G_SSUBSAT:
case TargetOpcode::G_UADDSAT:
case TargetOpcode::G_USUBSAT:
return widenScalarAddSubSat(MI, TypeIdx, WideTy);
case TargetOpcode::G_CTTZ:
case TargetOpcode::G_CTTZ_ZERO_UNDEF:
case TargetOpcode::G_CTLZ:

6
lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
View File

@ -1427,6 +1427,12 @@ AMDGPULegalizerInfo::AMDGPULegalizerInfo(const GCNSubtarget &ST_,
SextInReg.lowerFor({{S32}, {S64}});
}
// FIXME: Placeholder rule. Really depends on whether the clamp modifier is
// available, and is selectively legal for s16, s32, v2s16.
getActionDefinitionsBuilder({G_SADDSAT, G_SSUBSAT, G_UADDSAT, G_USUBSAT})
.scalarize(0)
.clampScalar(0, S16, S32);
SextInReg
.scalarize(0)
.clampScalar(0, S32, S64)

84
test/CodeGen/AMDGPU/GlobalISel/legalize-saddsat.mir
View File

@ -14,25 +14,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX6: [[SADDSAT:%[0-9]+]]:_(s7) = G_SADDSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SADDSAT]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[SADDSAT:%[0-9]+]]:_(s16) = G_SADDSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[SEXT:%[0-9]+]]:_(s32) = G_SEXT [[SADDSAT]](s16)
; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SEXT]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ASHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s7) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: saddsat_s7
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX8: [[SADDSAT:%[0-9]+]]:_(s7) = G_SADDSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SADDSAT]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[SADDSAT:%[0-9]+]]:_(s16) = G_SADDSAT [[SHL]], [[SHL1]]
; GFX8: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SADDSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[ASHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: saddsat_s7
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX9: [[SADDSAT:%[0-9]+]]:_(s7) = G_SADDSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SADDSAT]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[SADDSAT:%[0-9]+]]:_(s16) = G_SADDSAT [[SHL]], [[SHL1]]
; GFX9: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SADDSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[ASHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s7) = G_TRUNC %0
@ -53,25 +77,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX6: [[SADDSAT:%[0-9]+]]:_(s8) = G_SADDSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SADDSAT]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[SADDSAT:%[0-9]+]]:_(s16) = G_SADDSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[SEXT:%[0-9]+]]:_(s32) = G_SEXT [[SADDSAT]](s16)
; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SEXT]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ASHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: saddsat_s8
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX8: [[SADDSAT:%[0-9]+]]:_(s8) = G_SADDSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SADDSAT]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[SADDSAT:%[0-9]+]]:_(s16) = G_SADDSAT [[SHL]], [[SHL1]]
; GFX8: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SADDSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ASHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: saddsat_s8
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX9: [[SADDSAT:%[0-9]+]]:_(s8) = G_SADDSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SADDSAT]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[SADDSAT:%[0-9]+]]:_(s16) = G_SADDSAT [[SHL]], [[SHL1]]
; GFX9: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SADDSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ASHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s8) = G_TRUNC %0

84
test/CodeGen/AMDGPU/GlobalISel/legalize-ssubsat.mir
View File

@ -14,25 +14,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX6: [[SSUBSAT:%[0-9]+]]:_(s7) = G_SSUBSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SSUBSAT]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[SSUBSAT:%[0-9]+]]:_(s16) = G_SSUBSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[SEXT:%[0-9]+]]:_(s32) = G_SEXT [[SSUBSAT]](s16)
; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SEXT]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ASHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s7) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: ssubsat_s7
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX8: [[SSUBSAT:%[0-9]+]]:_(s7) = G_SSUBSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SSUBSAT]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[SSUBSAT:%[0-9]+]]:_(s16) = G_SSUBSAT [[SHL]], [[SHL1]]
; GFX8: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SSUBSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[ASHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: ssubsat_s7
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX9: [[SSUBSAT:%[0-9]+]]:_(s7) = G_SSUBSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SSUBSAT]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[SSUBSAT:%[0-9]+]]:_(s16) = G_SSUBSAT [[SHL]], [[SHL1]]
; GFX9: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SSUBSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[ASHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s7) = G_TRUNC %0
@ -53,25 +77,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX6: [[SSUBSAT:%[0-9]+]]:_(s8) = G_SSUBSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SSUBSAT]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[SSUBSAT:%[0-9]+]]:_(s16) = G_SSUBSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[SEXT:%[0-9]+]]:_(s32) = G_SEXT [[SSUBSAT]](s16)
; GFX6: [[ASHR:%[0-9]+]]:_(s32) = G_ASHR [[SEXT]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[ASHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: ssubsat_s8
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX8: [[SSUBSAT:%[0-9]+]]:_(s8) = G_SSUBSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SSUBSAT]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[SSUBSAT:%[0-9]+]]:_(s16) = G_SSUBSAT [[SHL]], [[SHL1]]
; GFX8: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SSUBSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ASHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: ssubsat_s8
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX9: [[SSUBSAT:%[0-9]+]]:_(s8) = G_SSUBSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[SSUBSAT]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[SSUBSAT:%[0-9]+]]:_(s16) = G_SSUBSAT [[SHL]], [[SHL1]]
; GFX9: [[ASHR:%[0-9]+]]:_(s16) = G_ASHR [[SSUBSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[ASHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s8) = G_TRUNC %0

84
test/CodeGen/AMDGPU/GlobalISel/legalize-uaddsat.mir
View File

@ -14,25 +14,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX6: [[UADDSAT:%[0-9]+]]:_(s7) = G_UADDSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UADDSAT]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[UADDSAT:%[0-9]+]]:_(s16) = G_UADDSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[UADDSAT]](s16)
; GFX6: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[ZEXT1]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s7) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: uaddsat_s7
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX8: [[UADDSAT:%[0-9]+]]:_(s7) = G_UADDSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UADDSAT]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[UADDSAT:%[0-9]+]]:_(s16) = G_UADDSAT [[SHL]], [[SHL1]]
; GFX8: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[UADDSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[LSHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: uaddsat_s7
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX9: [[UADDSAT:%[0-9]+]]:_(s7) = G_UADDSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UADDSAT]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[UADDSAT:%[0-9]+]]:_(s16) = G_UADDSAT [[SHL]], [[SHL1]]
; GFX9: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[UADDSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[LSHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s7) = G_TRUNC %0
@ -53,25 +77,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX6: [[UADDSAT:%[0-9]+]]:_(s8) = G_UADDSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UADDSAT]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[UADDSAT:%[0-9]+]]:_(s16) = G_UADDSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[UADDSAT]](s16)
; GFX6: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[ZEXT1]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: uaddsat_s8
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX8: [[UADDSAT:%[0-9]+]]:_(s8) = G_UADDSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UADDSAT]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[UADDSAT:%[0-9]+]]:_(s16) = G_UADDSAT [[SHL]], [[SHL1]]
; GFX8: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[UADDSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: uaddsat_s8
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX9: [[UADDSAT:%[0-9]+]]:_(s8) = G_UADDSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[UADDSAT]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[UADDSAT:%[0-9]+]]:_(s16) = G_UADDSAT [[SHL]], [[SHL1]]
; GFX9: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[UADDSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s8) = G_TRUNC %0

84
test/CodeGen/AMDGPU/GlobalISel/legalize-usubsat.mir
View File

@ -14,25 +14,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX6: [[USUBSAT:%[0-9]+]]:_(s7) = G_USUBSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[USUBSAT]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[USUBSAT:%[0-9]+]]:_(s16) = G_USUBSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[USUBSAT]](s16)
; GFX6: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[ZEXT1]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s7) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s7)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: usubsat_s7
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX8: [[USUBSAT:%[0-9]+]]:_(s7) = G_USUBSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[USUBSAT]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[USUBSAT:%[0-9]+]]:_(s16) = G_USUBSAT [[SHL]], [[SHL1]]
; GFX8: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[USUBSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[LSHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: usubsat_s7
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s7) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s7) = G_TRUNC [[COPY1]](s32)
; GFX9: [[USUBSAT:%[0-9]+]]:_(s7) = G_USUBSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[USUBSAT]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s7)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s7)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 9
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[USUBSAT:%[0-9]+]]:_(s16) = G_USUBSAT [[SHL]], [[SHL1]]
; GFX9: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[USUBSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s7) = G_TRUNC [[LSHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s7)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s7) = G_TRUNC %0
@ -53,25 +77,49 @@ body: |
; GFX6: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX6: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX6: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX6: [[USUBSAT:%[0-9]+]]:_(s8) = G_USUBSAT [[TRUNC]], [[TRUNC1]]
; GFX6: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[USUBSAT]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX6: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX6: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX6: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX6: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX6: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX6: [[USUBSAT:%[0-9]+]]:_(s16) = G_USUBSAT [[SHL]], [[SHL1]]
; GFX6: [[ZEXT:%[0-9]+]]:_(s32) = G_ZEXT [[C]](s16)
; GFX6: [[ZEXT1:%[0-9]+]]:_(s32) = G_ZEXT [[USUBSAT]](s16)
; GFX6: [[LSHR:%[0-9]+]]:_(s32) = G_LSHR [[ZEXT1]], [[ZEXT]](s32)
; GFX6: [[TRUNC2:%[0-9]+]]:_(s16) = G_TRUNC [[LSHR]](s32)
; GFX6: [[TRUNC3:%[0-9]+]]:_(s8) = G_TRUNC [[TRUNC2]](s16)
; GFX6: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC3]](s8)
; GFX6: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX8-LABEL: name: usubsat_s8
; GFX8: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX8: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX8: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX8: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX8: [[USUBSAT:%[0-9]+]]:_(s8) = G_USUBSAT [[TRUNC]], [[TRUNC1]]
; GFX8: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[USUBSAT]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX8: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX8: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX8: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX8: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX8: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX8: [[USUBSAT:%[0-9]+]]:_(s16) = G_USUBSAT [[SHL]], [[SHL1]]
; GFX8: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[USUBSAT]], [[C]](s16)
; GFX8: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR]](s16)
; GFX8: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX8: $vgpr0 = COPY [[ANYEXT2]](s32)
; GFX9-LABEL: name: usubsat_s8
; GFX9: [[COPY:%[0-9]+]]:_(s32) = COPY $vgpr0
; GFX9: [[COPY1:%[0-9]+]]:_(s32) = COPY $vgpr1
; GFX9: [[TRUNC:%[0-9]+]]:_(s8) = G_TRUNC [[COPY]](s32)
; GFX9: [[TRUNC1:%[0-9]+]]:_(s8) = G_TRUNC [[COPY1]](s32)
; GFX9: [[USUBSAT:%[0-9]+]]:_(s8) = G_USUBSAT [[TRUNC]], [[TRUNC1]]
; GFX9: [[ANYEXT:%[0-9]+]]:_(s32) = G_ANYEXT [[USUBSAT]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT]](s32)
; GFX9: [[ANYEXT:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC]](s8)
; GFX9: [[ANYEXT1:%[0-9]+]]:_(s16) = G_ANYEXT [[TRUNC1]](s8)
; GFX9: [[C:%[0-9]+]]:_(s16) = G_CONSTANT i16 8
; GFX9: [[SHL:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT]], [[C]](s16)
; GFX9: [[SHL1:%[0-9]+]]:_(s16) = G_SHL [[ANYEXT1]], [[C]](s16)
; GFX9: [[USUBSAT:%[0-9]+]]:_(s16) = G_USUBSAT [[SHL]], [[SHL1]]
; GFX9: [[LSHR:%[0-9]+]]:_(s16) = G_LSHR [[USUBSAT]], [[C]](s16)
; GFX9: [[TRUNC2:%[0-9]+]]:_(s8) = G_TRUNC [[LSHR]](s16)
; GFX9: [[ANYEXT2:%[0-9]+]]:_(s32) = G_ANYEXT [[TRUNC2]](s8)
; GFX9: $vgpr0 = COPY [[ANYEXT2]](s32)
%0:_(s32) = COPY $vgpr0
%1:_(s32) = COPY $vgpr1
%2:_(s8) = G_TRUNC %0