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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 | a4f809d8db5222708c9f4519f48916cc919fd19f (patch) | |
| tree | aee80089defd5453810b7cb166708723f96bd483 /lib/Target | |
| parent | bc908cfcc147a3494ebad86297cb6da737434064 (diff) | |
| download | llvm-a4f809d8db5222708c9f4519f48916cc919fd19f.tar.gz llvm-a4f809d8db5222708c9f4519f48916cc919fd19f.tar.bz2 llvm-a4f809d8db5222708c9f4519f48916cc919fd19f.tar.xz | |
DMB can just be a pat referencing MCR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127423 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target')
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 13 |
1 files changed, 6 insertions, 7 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index c28554baf6..6aad275086 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/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 // |