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| author | Evan Cheng <evan.cheng@apple.com> | 2010-07-13 19:21:50 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2010-07-13 19:21:50 +0000 |
| commit | 7a415999625f9791a8a7eea2027e628e29de15c0 (patch) | |
| tree | b82cff54c050113dcad95b089a2c1f3feaa80edf /lib/Target/ARM/ARMSubtarget.h | |
| parent | 43bc79a642b1b55140584c7a7eaac1788b5928e3 (diff) | |
| download | llvm-7a415999625f9791a8a7eea2027e628e29de15c0.tar.gz llvm-7a415999625f9791a8a7eea2027e628e29de15c0.tar.bz2 llvm-7a415999625f9791a8a7eea2027e628e29de15c0.tar.xz | |
Add an ARM "feature". Cortex-a8 fp comparison is very slow (> 20 cycles).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108256 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMSubtarget.h')
| -rw-r--r-- | lib/Target/ARM/ARMSubtarget.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h index 8332bba22d..e7d92ede9b 100644 --- a/lib/Target/ARM/ARMSubtarget.h +++ b/lib/Target/ARM/ARMSubtarget.h @@ -54,6 +54,9 @@ protected: /// the VML[AS] instructions are slow (if so, don't use them). bool SlowVMLx; + /// SlowFPBrcc - True if floating point compare + branch is slow. + bool SlowFPBrcc; + /// IsThumb - True if we are in thumb mode, false if in ARM mode. bool IsThumb; @@ -133,6 +136,7 @@ protected: bool hasDivide() const { return HasHardwareDivide; } bool hasT2ExtractPack() const { return HasT2ExtractPack; } bool useVMLx() const {return hasVFP2() && !SlowVMLx; } + bool isFPBrccSlow() const { return SlowFPBrcc; } bool hasFP16() const { return HasFP16; } |