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[GlobalISel] Add G_ABDS and G_ABDU instructions #118122

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Merged
merged 6 commits into from
Dec 4, 2024
Merged

[GlobalISel] Add G_ABDS and G_ABDU instructions #118122

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9f929ff
[GlobalISel] Add G_ABDS and G_ABDU instructions
tschuett Nov 29, 2024
fb0454a
fix typo
tschuett Nov 29, 2024
07cce36
global isel emiiter
tschuett Nov 30, 2024
9bb15cb
They are isCommutable=true.
tschuett Nov 30, 2024
c640bea
address review comments
tschuett Dec 3, 2024
ad8b237
restore etests
tschuett Dec 4, 2024
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10 changes: 0 additions & 10 deletions llvm/lib/CodeGen/MachineVerifier.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1591,16 +1591,6 @@ void MachineVerifier::verifyPreISelGenericInstruction(const MachineInstr *MI) {
LLT SrcTy = MRI->getType(MI->getOperand(1).getReg());
LLT SrcTy2 = MRI->getType(MI->getOperand(2).getReg());

if (SrcTy.isPointerOrPointerVector() || SrcTy2.isPointerOrPointerVector()) {
report("Generic abds/abdu does not support pointers as operands", MI);
break;
}

if (DstTy.isPointerOrPointerVector()) {
report("Generic abds/abdu does not support pointers as a result", MI);
break;
}

if ((DstTy.isVector() != SrcTy.isVector()) ||
(DstTy.isVector() &&
DstTy.getElementCount() != SrcTy.getElementCount())) {
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10 changes: 0 additions & 10 deletions llvm/test/MachineVerifier/test_abd_su.mir
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Expand Up @@ -6,16 +6,6 @@ name: g_abd_su
body: |
bb.0:

%2:_(p0) = G_IMPLICIT_DEF
%3:_(p0) = G_IMPLICIT_DEF
; CHECK: Generic abds/abdu does not support pointers as operands
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@arsenm arsenm Dec 3, 2024

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You would still keep these tests even if the generic logic handles it

%4:_(s1) = G_ABDS %2, %3

%12:_(s64) = G_IMPLICIT_DEF
%13:_(s64) = G_IMPLICIT_DEF
; CHECK: Generic abds/abdu does not support pointers as a result
%14:_(p0) = G_ABDS %12, %13

%23:_(<2 x s32>) = G_IMPLICIT_DEF
%24:_(<2 x s32>) = G_IMPLICIT_DEF
; CHECK: Generic vector abds/abdu must preserve number of lanes
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