diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64ConditionOptimizer.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64ConditionOptimizer.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64ConditionOptimizer.cpp b/llvm/lib/Target/AArch64/AArch64ConditionOptimizer.cpp index bd7918d3b62..b04e0471f7d 100644 --- a/llvm/lib/Target/AArch64/AArch64ConditionOptimizer.cpp +++ b/llvm/lib/Target/AArch64/AArch64ConditionOptimizer.cpp @@ -155,6 +155,17 @@ MachineInstr *AArch64ConditionOptimizer::findSuitableCompare( case AArch64::ADDSXri: return I; + // Prevent false positive case like: + // cmp w19, #0 + // cinc w0, w19, gt + // ... + // fcmp d8, #0.0 + // b.gt .LBB0_5 + case AArch64::FCMPDri: + case AArch64::FCMPSri: + case AArch64::FCMPESri: + case AArch64::FCMPEDri: + case AArch64::SUBSWrr: case AArch64::SUBSXrr: case AArch64::ADDSWrr: |
