diff options
| author | Hal Finkel <hfinkel@anl.gov> | 2013-04-01 17:52:07 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2013-04-01 17:52:07 +0000 |
| commit | 46479197843ecb651adc9417c49bbd1b00acfcb6 (patch) | |
| tree | 143df888333c2baabf6cf07c8ef7297b86b5035c /lib/Target/PowerPC/PPC.td | |
| parent | a1f4290ac94f34173e3561c717390de07dccc646 (diff) | |
| download | llvm-46479197843ecb651adc9417c49bbd1b00acfcb6.tar.gz llvm-46479197843ecb651adc9417c49bbd1b00acfcb6.tar.bz2 llvm-46479197843ecb651adc9417c49bbd1b00acfcb6.tar.xz | |
Add more PPC floating-point conversion instructions
The P7 and A2 have additional floating-point conversion instructions which
allow a direct two-instruction sequence (plus load/store) to convert from all
combinations (signed/unsigned i32/i64) <--> (float/double) (on previous cores,
only some combinations were directly available).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178480 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPC.td')
| -rw-r--r-- | lib/Target/PowerPC/PPC.td | 21 |
1 files changed, 11 insertions, 10 deletions
diff --git a/lib/Target/PowerPC/PPC.td b/lib/Target/PowerPC/PPC.td index 602e33cd29..a1ea2297bf 100644 --- a/lib/Target/PowerPC/PPC.td +++ b/lib/Target/PowerPC/PPC.td @@ -63,6 +63,8 @@ def FeatureLFIWAX : SubtargetFeature<"lfiwax","HasLFIWAX", "true", "Enable the lfiwax instruction">; def FeatureFPRND : SubtargetFeature<"fprnd", "HasFPRND", "true", "Enable the fri[mnpz] instructions">; +def FeatureFPCVT : SubtargetFeature<"fpcvt", "HasFPCVT", "true", + "Enable fc[ft]* (unsigned and single-precision) and lfiwzx instructions">; def FeatureISEL : SubtargetFeature<"isel","HasISEL", "true", "Enable the isel instruction">; def FeaturePOPCNTD : SubtargetFeature<"popcntd","HasPOPCNTD", "true", @@ -79,10 +81,8 @@ def FeatureQPX : SubtargetFeature<"qpx","HasQPX", "true", // // CMPB p6, p6x, p7 cmpb // DFP p6, p6x, p7 decimal floating-point instructions -// FLT_CVT p7 fcfids, fcfidu, fcfidus, fcfiduz, fctiwuz // FRE p5 through p7 fre (vs. fres, available since p3) // FRSQRTES p5 through p7 frsqrtes (vs. frsqrte, available since p3) -// LFIWZX p7 lfiwzx // POPCNTB p5 through p7 popcntb and related instructions // RECIP_PREC p6, p6x, p7 higher precision reciprocal estimates // VSX p7 vector-scalar instruction set @@ -135,14 +135,15 @@ def : ProcessorModel<"e5500", PPCE5500Model, def : Processor<"a2", PPCA2Itineraries, [DirectiveA2, FeatureBookE, FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX, - FeatureFPRND, FeatureISEL, FeaturePOPCNTD, - FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */]>; + FeatureFPRND, FeatureFPCVT, FeatureISEL, + FeaturePOPCNTD, FeatureLDBRX, Feature64Bit + /*, Feature64BitRegs */]>; def : Processor<"a2q", PPCA2Itineraries, [DirectiveA2, FeatureBookE, FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX, FeatureLFIWAX, - FeatureFPRND, FeatureISEL, FeaturePOPCNTD, - FeatureLDBRX, Feature64Bit /*, Feature64BitRegs */, - FeatureQPX]>; + FeatureFPRND, FeatureFPCVT, FeatureISEL, + FeaturePOPCNTD, FeatureLDBRX, Feature64Bit + /*, Feature64BitRegs */, FeatureQPX]>; def : Processor<"pwr3", G5Itineraries, [DirectivePwr3, FeatureAltivec, FeatureMFOCRF, FeatureSTFIWX, Feature64Bit]>; @@ -168,9 +169,9 @@ def : Processor<"pwr6x", G5Itineraries, def : Processor<"pwr7", G5Itineraries, [DirectivePwr7, FeatureAltivec, FeatureMFOCRF, FeatureFSqrt, FeatureSTFIWX, - FeatureLFIWAX, FeatureFPRND, FeatureISEL, - FeaturePOPCNTD, FeatureLDBRX, Feature64Bit - /*, Feature64BitRegs */]>; + FeatureLFIWAX, FeatureFPRND, FeatureFPCVT, + FeatureISEL, FeaturePOPCNTD, FeatureLDBRX, + Feature64Bit /*, Feature64BitRegs */]>; def : Processor<"ppc", G3Itineraries, [Directive32]>; def : Processor<"ppc64", G5Itineraries, [Directive64, FeatureAltivec, |