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[PowerPC] Fix value type on XVCMPEQDP for v2f64 comparisons

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XVCMPEQDP is used for VSX v2f64 equality comparisons, but the value type needs
to be v2i64 (as that's the corresponding SETCC type).

Fixes PR24225.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@245535 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hal Finkel 2015-08-20 03:02:02 +00:00
parent c2b62e02e8
commit d51dd69e79
2 changed files with 42 additions and 3 deletions
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7
lib/Target/PowerPC/PPCISelDAGToDAG.cpp
View File

@ -2305,14 +2305,15 @@ SDNode *PPCDAGToDAGISel::SelectSETCC(SDNode *N) {
if (Swap)
std::swap(LHS, RHS);
EVT ResVT = VecVT.changeVectorElementTypeToInteger();
if (Negate) {
SDValue VCmp(CurDAG->getMachineNode(VCmpInst, dl, VecVT, LHS, RHS), 0);
SDValue VCmp(CurDAG->getMachineNode(VCmpInst, dl, ResVT, LHS, RHS), 0);
return CurDAG->SelectNodeTo(N, PPCSubTarget->hasVSX() ? PPC::XXLNOR :
PPC::VNOR,
VecVT, VCmp, VCmp);
ResVT, VCmp, VCmp);
}
return CurDAG->SelectNodeTo(N, VCmpInst, VecVT, LHS, RHS);
return CurDAG->SelectNodeTo(N, VCmpInst, ResVT, LHS, RHS);
}
if (PPCSubTarget->useCRBits())

38
test/CodeGen/PowerPC/xvcmpeqdp-v2f64.ll Normal file
View File

@ -0,0 +1,38 @@
; RUN: llc < %s | FileCheck %s
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
; Function Attrs: nounwind
define void @__fmax_double3_3D_exec() #0 {
entry:
br i1 undef, label %if.then.i, label %fmax_double3.exit
if.then.i: ; preds = %entry
%cmp24.i.i = fcmp ord <3 x double> undef, zeroinitializer
%sext25.i.i = sext <3 x i1> %cmp24.i.i to <3 x i64>
%neg.i.i = xor <3 x i64> %sext25.i.i, <i64 -1, i64 -1, i64 -1>
%or.i.i = or <3 x i64> undef, %neg.i.i
%neg.i.i.i = select <3 x i1> undef, <3 x i64> zeroinitializer, <3 x i64> %sext25.i.i
%and.i.i.i = and <3 x i64> undef, %neg.i.i.i
%and26.i.i.i = and <3 x i64> undef, %or.i.i
%or.i.i.i = or <3 x i64> %and.i.i.i, %and26.i.i.i
%astype32.i.i.i = bitcast <3 x i64> %or.i.i.i to <3 x double>
%extractVec33.i.i.i = shufflevector <3 x double> %astype32.i.i.i, <3 x double> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 undef>
store <4 x double> %extractVec33.i.i.i, <4 x double>* undef, align 32
br label %fmax_double3.exit
; CHECK-LABEL: @__fmax_double3_3D_exec
; CHECK: xvcmpeqdp
fmax_double3.exit: ; preds = %if.then.i, %entry
br i1 undef, label %if.then, label %do.end
if.then: ; preds = %fmax_double3.exit
unreachable
do.end: ; preds = %fmax_double3.exit
ret void
}
attributes #0 = { nounwind }