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| author | Dale Johannesen <dalej@apple.com> | 2008-09-12 00:30:56 +0000 |
|---|---|---|
| committer | Dale Johannesen <dalej@apple.com> | 2008-09-12 00:30:56 +0000 |
| commit | baf6762e2600fcdb9e068451408d2a6a0cd782f7 (patch) | |
| tree | acb59937d1fc45f15c1233d5e4ed48cd0a6a90aa /llvm/lib/CodeGen/SelectionDAG | |
| parent | 484603be402c5297aae037ab34837c7c9164e377 (diff) | |
| download | bcm5719-llvm-baf6762e2600fcdb9e068451408d2a6a0cd782f7.tar.gz bcm5719-llvm-baf6762e2600fcdb9e068451408d2a6a0cd782f7.zip | |
The sequence for ppcf128 compares was not IEEE
safe in the presence of NaNs.
llvm-svn: 56136
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 79f03468f0d..cf471cb59f4 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp @@ -4763,14 +4763,16 @@ void SelectionDAGLegalize::LegalizeSetCCOperands(SDValue &LHS, if (VT==MVT::ppcf128) { // FIXME: This generated code sucks. We want to generate - // FCMP crN, hi1, hi2 + // FCMPU crN, hi1, hi2 // BNE crN, L: - // FCMP crN, lo1, lo2 + // FCMPU crN, lo1, lo2 // The following can be improved, but not that much. - Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETEQ); + Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, + ISD::SETOEQ); Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, CCCode); Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); - Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, ISD::SETNE); + Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, + ISD::SETUNE); Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, CCCode); Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); |
