mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-04-03 18:32:50 +00:00
Remove the logic for reasoning about NaNs from the code that forms
SSE min and max instructions. The real thing this code needs to be concerned about is negative zero. Update the sse-minmax.ll test accordingly, and add tests for -enable-unsafe-fp-math mode as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96775 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
parent
278f958c61
commit
8ce05daf54
@ -8793,10 +8793,9 @@ static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG,
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SDValue RHS = N->getOperand(2);
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// If we have SSE[12] support, try to form min/max nodes. SSE min/max
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// instructions have the peculiarity that if either operand is a NaN,
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// they chose what we call the RHS operand (and as such are not symmetric).
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// It happens that this matches the semantics of the common C idiom
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// x<y?x:y and related forms, so we can recognize these cases.
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// instructions match the semantics of the common C idiom x<y?x:y but not
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// x<=y?x:y, because of how they handle negative zero (which can be
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// ignored in unsafe-math mode).
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if (Subtarget->hasSSE2() &&
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(LHS.getValueType() == MVT::f32 || LHS.getValueType() == MVT::f64) &&
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Cond.getOpcode() == ISD::SETCC) {
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@ -8808,33 +8807,14 @@ static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG,
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switch (CC) {
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default: break;
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case ISD::SETULT:
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// This can be a min if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(RHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(LHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMIN;
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break;
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case ISD::SETOLE:
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// This can be a min if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(LHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(RHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMIN;
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break;
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case ISD::SETULE:
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// This can be a min, but if either operand is a NaN we need it to
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// preserve the original LHS.
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std::swap(LHS, RHS);
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case ISD::SETOLT:
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case ISD::SETLT:
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case ISD::SETLE:
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@ -8842,33 +8822,14 @@ static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG,
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break;
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case ISD::SETOGE:
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// This can be a max if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(LHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(RHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMAX;
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break;
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case ISD::SETUGT:
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// This can be a max if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(RHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(LHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMAX;
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break;
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case ISD::SETUGE:
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// This can be a max, but if either operand is a NaN we need it to
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// preserve the original LHS.
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std::swap(LHS, RHS);
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case ISD::SETOGT:
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case ISD::SETGT:
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case ISD::SETGE:
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@ -8880,33 +8841,14 @@ static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG,
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switch (CC) {
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default: break;
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case ISD::SETOGE:
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// This can be a min if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(RHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(LHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMIN;
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break;
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case ISD::SETUGT:
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// This can be a min if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(LHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(RHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMIN;
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break;
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case ISD::SETUGE:
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// This can be a min, but if either operand is a NaN we need it to
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// preserve the original LHS.
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std::swap(LHS, RHS);
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case ISD::SETOGT:
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case ISD::SETGT:
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case ISD::SETGE:
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@ -8914,33 +8856,14 @@ static SDValue PerformSELECTCombine(SDNode *N, SelectionDAG &DAG,
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break;
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case ISD::SETULT:
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// This can be a max if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(LHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(RHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMAX;
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break;
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case ISD::SETOLE:
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// This can be a max if we can prove that at least one of the operands
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// is not a nan.
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if (!FiniteOnlyFPMath()) {
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if (DAG.isKnownNeverNaN(RHS)) {
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// Put the potential NaN in the RHS so that SSE will preserve it.
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std::swap(LHS, RHS);
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} else if (!DAG.isKnownNeverNaN(LHS))
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break;
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}
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if (!UnsafeFPMath) break;
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Opcode = X86ISD::FMAX;
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break;
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case ISD::SETULE:
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// This can be a max, but if either operand is a NaN we need it to
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// preserve the original LHS.
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std::swap(LHS, RHS);
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case ISD::SETOLT:
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case ISD::SETLT:
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case ISD::SETLE:
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@ -1,4 +1,5 @@
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; RUN: llc < %s -march=x86-64 -asm-verbose=false | FileCheck %s
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; RUN: llc < %s -march=x86-64 -asm-verbose=false -enable-unsafe-fp-math | FileCheck -check-prefix=uNSAFE %s
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; Some of these patterns can be matched as SSE min or max. Some of
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; then can be matched provided that the operands are swapped.
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@ -12,6 +13,9 @@
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; CHECK: ogt:
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: ogt:
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; uNSAFE-NEXT: maxsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @ogt(double %x, double %y) nounwind {
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%c = fcmp ogt double %x, %y
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%d = select i1 %c, double %x, double %y
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@ -21,6 +25,9 @@ define double @ogt(double %x, double %y) nounwind {
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; CHECK: olt:
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: olt:
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; uNSAFE-NEXT: minsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @olt(double %x, double %y) nounwind {
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%c = fcmp olt double %x, %y
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%d = select i1 %c, double %x, double %y
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@ -31,6 +38,10 @@ define double @olt(double %x, double %y) nounwind {
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: ogt_inverse:
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; uNSAFE-NEXT: minsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @ogt_inverse(double %x, double %y) nounwind {
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%c = fcmp ogt double %x, %y
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%d = select i1 %c, double %y, double %x
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@ -41,6 +52,10 @@ define double @ogt_inverse(double %x, double %y) nounwind {
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: olt_inverse:
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; uNSAFE-NEXT: maxsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @olt_inverse(double %x, double %y) nounwind {
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%c = fcmp olt double %x, %y
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%d = select i1 %c, double %y, double %x
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@ -49,6 +64,9 @@ define double @olt_inverse(double %x, double %y) nounwind {
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; CHECK: oge:
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; CHECK-NEXT: ucomisd %xmm1, %xmm0
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; uNSAFE: oge:
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; uNSAFE-NEXT: maxsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @oge(double %x, double %y) nounwind {
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%c = fcmp oge double %x, %y
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%d = select i1 %c, double %x, double %y
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@ -57,6 +75,8 @@ define double @oge(double %x, double %y) nounwind {
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; CHECK: ole:
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; CHECK-NEXT: ucomisd %xmm0, %xmm1
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; uNSAFE: ole:
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; uNSAFE-NEXT: minsd %xmm1, %xmm0
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define double @ole(double %x, double %y) nounwind {
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%c = fcmp ole double %x, %y
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%d = select i1 %c, double %x, double %y
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@ -65,6 +85,10 @@ define double @ole(double %x, double %y) nounwind {
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; CHECK: oge_inverse:
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; CHECK-NEXT: ucomisd %xmm1, %xmm0
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; uNSAFE: oge_inverse:
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; uNSAFE-NEXT: minsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @oge_inverse(double %x, double %y) nounwind {
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%c = fcmp oge double %x, %y
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%d = select i1 %c, double %y, double %x
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@ -73,6 +97,10 @@ define double @oge_inverse(double %x, double %y) nounwind {
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; CHECK: ole_inverse:
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; CHECK-NEXT: ucomisd %xmm0, %xmm1
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; uNSAFE: ole_inverse:
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; uNSAFE-NEXT: maxsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @ole_inverse(double %x, double %y) nounwind {
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%c = fcmp ole double %x, %y
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%d = select i1 %c, double %y, double %x
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@ -83,6 +111,10 @@ define double @ole_inverse(double %x, double %y) nounwind {
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: x_ogt:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: maxsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_ogt(double %x) nounwind {
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%c = fcmp ogt double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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@ -93,6 +125,10 @@ define double @x_ogt(double %x) nounwind {
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: x_olt:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: minsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_olt(double %x) nounwind {
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%c = fcmp olt double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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@ -104,6 +140,11 @@ define double @x_olt(double %x) nounwind {
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: x_ogt_inverse:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: minsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_ogt_inverse(double %x) nounwind {
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%c = fcmp ogt double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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@ -115,6 +156,11 @@ define double @x_ogt_inverse(double %x) nounwind {
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; uNSAFE: x_olt_inverse:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: maxsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_olt_inverse(double %x) nounwind {
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%c = fcmp olt double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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@ -122,9 +168,11 @@ define double @x_olt_inverse(double %x) nounwind {
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}
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; CHECK: x_oge:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; CHECK: ucomisd %xmm1, %xmm0
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; uNSAFE: x_oge:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: maxsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_oge(double %x) nounwind {
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%c = fcmp oge double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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@ -132,9 +180,11 @@ define double @x_oge(double %x) nounwind {
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}
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; CHECK: x_ole:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; CHECK: ucomisd %xmm0, %xmm1
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; uNSAFE: x_ole:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: minsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_ole(double %x) nounwind {
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%c = fcmp ole double %x, 0.000000e+00
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%d = select i1 %c, double %x, double 0.000000e+00
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@ -142,10 +192,12 @@ define double @x_ole(double %x) nounwind {
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}
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; CHECK: x_oge_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: minsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; CHECK: ucomisd %xmm1, %xmm0
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; uNSAFE: x_oge_inverse:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: minsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_oge_inverse(double %x) nounwind {
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%c = fcmp oge double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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@ -153,10 +205,12 @@ define double @x_oge_inverse(double %x) nounwind {
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}
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; CHECK: x_ole_inverse:
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; CHECK-NEXT: pxor %xmm1, %xmm1
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; CHECK-NEXT: maxsd %xmm0, %xmm1
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; CHECK-NEXT: movapd %xmm1, %xmm0
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; CHECK-NEXT: ret
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; CHECK: ucomisd %xmm0, %xmm1
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; uNSAFE: x_ole_inverse:
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; uNSAFE-NEXT: pxor %xmm1, %xmm1
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; uNSAFE-NEXT: maxsd %xmm0, %xmm1
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; uNSAFE-NEXT: movapd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @x_ole_inverse(double %x) nounwind {
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%c = fcmp ole double %x, 0.000000e+00
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%d = select i1 %c, double 0.000000e+00, double %x
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@ -164,7 +218,10 @@ define double @x_ole_inverse(double %x) nounwind {
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}
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; CHECK: ugt:
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; CHECK-NEXT: ucomisd %xmm0, %xmm1
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; CHECK: ucomisd %xmm0, %xmm1
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; uNSAFE: ugt:
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; uNSAFE-NEXT: maxsd %xmm1, %xmm0
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; uNSAFE-NEXT: ret
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define double @ugt(double %x, double %y) nounwind {
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%c = fcmp ugt double %x, %y
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%d = select i1 %c, double %x, double %y
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@ -172,7 +229,10 @@ define double @ugt(double %x, double %y) nounwind {
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}
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; CHECK: ult:
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; CHECK-NEXT: ucomisd %xmm1, %xmm0
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; CHECK: ucomisd %xmm1, %xmm0
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; uNSAFE: ult:
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; uNSAFE-NEXT: minsd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @ult(double %x, double %y) nounwind {
|
||||
%c = fcmp ult double %x, %y
|
||||
%d = select i1 %c, double %x, double %y
|
||||
@ -180,7 +240,11 @@ define double @ult(double %x, double %y) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: ugt_inverse:
|
||||
; CHECK-NEXT: ucomisd %xmm0, %xmm1
|
||||
; CHECK: ucomisd %xmm0, %xmm1
|
||||
; uNSAFE: ugt_inverse:
|
||||
; uNSAFE-NEXT: minsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @ugt_inverse(double %x, double %y) nounwind {
|
||||
%c = fcmp ugt double %x, %y
|
||||
%d = select i1 %c, double %y, double %x
|
||||
@ -188,7 +252,11 @@ define double @ugt_inverse(double %x, double %y) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: ult_inverse:
|
||||
; CHECK-NEXT: ucomisd %xmm1, %xmm0
|
||||
; CHECK: ucomisd %xmm1, %xmm0
|
||||
; uNSAFE: ult_inverse:
|
||||
; uNSAFE-NEXT: maxsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @ult_inverse(double %x, double %y) nounwind {
|
||||
%c = fcmp ult double %x, %y
|
||||
%d = select i1 %c, double %y, double %x
|
||||
@ -196,9 +264,11 @@ define double @ult_inverse(double %x, double %y) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: uge:
|
||||
; CHECK-NEXT: maxsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: maxsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: uge:
|
||||
; uNSAFE-NEXT: maxsd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @uge(double %x, double %y) nounwind {
|
||||
%c = fcmp uge double %x, %y
|
||||
%d = select i1 %c, double %x, double %y
|
||||
@ -206,9 +276,11 @@ define double @uge(double %x, double %y) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: ule:
|
||||
; CHECK-NEXT: minsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: minsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: ule:
|
||||
; uNSAFE-NEXT: minsd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @ule(double %x, double %y) nounwind {
|
||||
%c = fcmp ule double %x, %y
|
||||
%d = select i1 %c, double %x, double %y
|
||||
@ -216,8 +288,13 @@ define double @ule(double %x, double %y) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: uge_inverse:
|
||||
; CHECK-NEXT: minsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: minsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: uge_inverse:
|
||||
; uNSAFE-NEXT: minsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @uge_inverse(double %x, double %y) nounwind {
|
||||
%c = fcmp uge double %x, %y
|
||||
%d = select i1 %c, double %y, double %x
|
||||
@ -225,8 +302,13 @@ define double @uge_inverse(double %x, double %y) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: ule_inverse:
|
||||
; CHECK-NEXT: maxsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: maxsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: ule_inverse:
|
||||
; uNSAFE-NEXT: maxsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @ule_inverse(double %x, double %y) nounwind {
|
||||
%c = fcmp ule double %x, %y
|
||||
%d = select i1 %c, double %y, double %x
|
||||
@ -234,10 +316,11 @@ define double @ule_inverse(double %x, double %y) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: x_ugt:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: maxsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; CHECK: ucomisd %xmm0, %xmm1
|
||||
; uNSAFE: x_ugt:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: maxsd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_ugt(double %x) nounwind {
|
||||
%c = fcmp ugt double %x, 0.000000e+00
|
||||
%d = select i1 %c, double %x, double 0.000000e+00
|
||||
@ -245,10 +328,11 @@ define double @x_ugt(double %x) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: x_ult:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: minsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; CHECK: ucomisd %xmm1, %xmm0
|
||||
; uNSAFE: x_ult:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: minsd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_ult(double %x) nounwind {
|
||||
%c = fcmp ult double %x, 0.000000e+00
|
||||
%d = select i1 %c, double %x, double 0.000000e+00
|
||||
@ -256,9 +340,12 @@ define double @x_ult(double %x) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: x_ugt_inverse:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: minsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; CHECK: ucomisd %xmm0, %xmm1
|
||||
; uNSAFE: x_ugt_inverse:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: minsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_ugt_inverse(double %x) nounwind {
|
||||
%c = fcmp ugt double %x, 0.000000e+00
|
||||
%d = select i1 %c, double 0.000000e+00, double %x
|
||||
@ -266,9 +353,12 @@ define double @x_ugt_inverse(double %x) nounwind {
|
||||
}
|
||||
|
||||
; CHECK: x_ult_inverse:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: maxsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; CHECK: ucomisd %xmm1, %xmm0
|
||||
; uNSAFE: x_ult_inverse:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: maxsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_ult_inverse(double %x) nounwind {
|
||||
%c = fcmp ult double %x, 0.000000e+00
|
||||
%d = select i1 %c, double 0.000000e+00, double %x
|
||||
@ -277,9 +367,12 @@ define double @x_ult_inverse(double %x) nounwind {
|
||||
|
||||
; CHECK: x_uge:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: maxsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: maxsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: x_uge:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: maxsd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_uge(double %x) nounwind {
|
||||
%c = fcmp uge double %x, 0.000000e+00
|
||||
%d = select i1 %c, double %x, double 0.000000e+00
|
||||
@ -288,9 +381,12 @@ define double @x_uge(double %x) nounwind {
|
||||
|
||||
; CHECK: x_ule:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: minsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: minsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: x_ule:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: minsd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_ule(double %x) nounwind {
|
||||
%c = fcmp ule double %x, 0.000000e+00
|
||||
%d = select i1 %c, double %x, double 0.000000e+00
|
||||
@ -299,8 +395,14 @@ define double @x_ule(double %x) nounwind {
|
||||
|
||||
; CHECK: x_uge_inverse:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: minsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: minsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: x_uge_inverse:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: minsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_uge_inverse(double %x) nounwind {
|
||||
%c = fcmp uge double %x, 0.000000e+00
|
||||
%d = select i1 %c, double 0.000000e+00, double %x
|
||||
@ -309,8 +411,14 @@ define double @x_uge_inverse(double %x) nounwind {
|
||||
|
||||
; CHECK: x_ule_inverse:
|
||||
; CHECK-NEXT: pxor %xmm1, %xmm1
|
||||
; CHECK-NEXT: maxsd %xmm1, %xmm0
|
||||
; CHECK-NEXT: maxsd %xmm0, %xmm1
|
||||
; CHECK-NEXT: movapd %xmm1, %xmm0
|
||||
; CHECK-NEXT: ret
|
||||
; uNSAFE: x_ule_inverse:
|
||||
; uNSAFE-NEXT: pxor %xmm1, %xmm1
|
||||
; uNSAFE-NEXT: maxsd %xmm0, %xmm1
|
||||
; uNSAFE-NEXT: movapd %xmm1, %xmm0
|
||||
; uNSAFE-NEXT: ret
|
||||
define double @x_ule_inverse(double %x) nounwind {
|
||||
%c = fcmp ule double %x, 0.000000e+00
|
||||
%d = select i1 %c, double 0.000000e+00, double %x
|
||||
@ -321,6 +429,8 @@ define double @x_ule_inverse(double %x) nounwind {
|
||||
|
||||
; CHECK: clampTo3k_a:
|
||||
; CHECK: minsd
|
||||
; uNSAFE: clampTo3k_a:
|
||||
; uNSAFE: minsd
|
||||
define double @clampTo3k_a(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp ogt double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
@ -330,6 +440,8 @@ entry:
|
||||
|
||||
; CHECK: clampTo3k_b:
|
||||
; CHECK: minsd
|
||||
; uNSAFE: clampTo3k_b:
|
||||
; uNSAFE: minsd
|
||||
define double @clampTo3k_b(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp uge double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
@ -339,6 +451,8 @@ entry:
|
||||
|
||||
; CHECK: clampTo3k_c:
|
||||
; CHECK: maxsd
|
||||
; uNSAFE: clampTo3k_c:
|
||||
; uNSAFE: maxsd
|
||||
define double @clampTo3k_c(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp olt double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
@ -348,6 +462,8 @@ entry:
|
||||
|
||||
; CHECK: clampTo3k_d:
|
||||
; CHECK: maxsd
|
||||
; uNSAFE: clampTo3k_d:
|
||||
; uNSAFE: maxsd
|
||||
define double @clampTo3k_d(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp ule double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
@ -357,6 +473,8 @@ entry:
|
||||
|
||||
; CHECK: clampTo3k_e:
|
||||
; CHECK: maxsd
|
||||
; uNSAFE: clampTo3k_e:
|
||||
; uNSAFE: maxsd
|
||||
define double @clampTo3k_e(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp olt double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
@ -366,6 +484,8 @@ entry:
|
||||
|
||||
; CHECK: clampTo3k_f:
|
||||
; CHECK: maxsd
|
||||
; uNSAFE: clampTo3k_f:
|
||||
; uNSAFE: maxsd
|
||||
define double @clampTo3k_f(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp ule double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
@ -375,6 +495,8 @@ entry:
|
||||
|
||||
; CHECK: clampTo3k_g:
|
||||
; CHECK: minsd
|
||||
; uNSAFE: clampTo3k_g:
|
||||
; uNSAFE: minsd
|
||||
define double @clampTo3k_g(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp ogt double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
@ -384,6 +506,8 @@ entry:
|
||||
|
||||
; CHECK: clampTo3k_h:
|
||||
; CHECK: minsd
|
||||
; uNSAFE: clampTo3k_h:
|
||||
; uNSAFE: minsd
|
||||
define double @clampTo3k_h(double %x) nounwind readnone {
|
||||
entry:
|
||||
%0 = fcmp uge double %x, 3.000000e+03 ; <i1> [#uses=1]
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user