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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 | e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4a (patch) | |
| tree | a2b3ca1b8435f1f1f389fef16490395930b4270b /lib/CodeGen | |
| parent | 4f833d435147f98329ae015140ca2b6ea530b717 (diff) | |
| download | llvm-e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4a.tar.gz llvm-e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4a.tar.bz2 llvm-e2f2083f9ca6f9a9a9d7dbb75d59a779a0452f4a.tar.xz | |
The sequence for ppcf128 compares was not IEEE
safe in the presence of NaNs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56136 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/LegalizeDAG.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp b/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp index 79f03468f0..cf471cb59f 100644 --- a/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp +++ b/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); |