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| author | Jim Grosbach <grosbach@apple.com> | 2011-03-10 19:27:17 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2011-03-10 19:27:17 +0000 |
| commit | e5ccac85d302ea158a64cc598abf17e72331b30b (patch) | |
| tree | 69f910dbeeb41d00e3e046f32e5de33cd0ff811a /llvm | |
| parent | b75c0db9d29d265bbb304c20ff163daa360414d5 (diff) | |
| download | bcm5719-llvm-e5ccac85d302ea158a64cc598abf17e72331b30b.tar.gz bcm5719-llvm-e5ccac85d302ea158a64cc598abf17e72331b30b.zip | |
DMB can just be a pat referencing MCR.
llvm-svn: 127423
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMInstrInfo.td | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/llvm/lib/Target/ARM/ARMInstrInfo.td b/llvm/lib/Target/ARM/ARMInstrInfo.td index c28554baf62..6aad275086f 100644 --- a/llvm/lib/Target/ARM/ARMInstrInfo.td +++ b/llvm/lib/Target/ARM/ARMInstrInfo.td @@ -3250,13 +3250,6 @@ def DMB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary, let Inst{31-4} = 0xf57ff05; let Inst{3-0} = opt; } - -def DMB_MCR : AInoP<(outs), (ins GPR:$zero), MiscFrm, NoItinerary, - "mcr", "\tp15, 0, $zero, c7, c10, 5", - [(ARMMemBarrierMCR GPR:$zero)]>, - Requires<[IsARM, HasV6]> { - // FIXME: add encoding -} } def DSB : AInoP<(outs), (ins memb_opt:$opt), MiscFrm, NoItinerary, @@ -3915,6 +3908,12 @@ def : ARMV5TEPat<(add GPR:$acc, (sra (mul GPR:$a, sext_16_node:$b), (i32 16))), (SMLAWB GPR:$a, GPR:$b, GPR:$acc)>; + +// Pre-v7 uses MCR for synchronization barriers. +def : ARMPat<(ARMMemBarrierMCR GPR:$zero), (MCR 15, 0, GPR:$zero, 7, 10, 5)>, + Requires<[IsARM, HasV6]>; + + //===----------------------------------------------------------------------===// // Thumb Support // |
