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| author | Tim Northover <Tim.Northover@arm.com> | 2013-04-10 12:08:35 +0000 |
|---|---|---|
| committer | Tim Northover <Tim.Northover@arm.com> | 2013-04-10 12:08:35 +0000 |
| commit | 8c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4 (patch) | |
| tree | b9506d93306a8ea590e51a69a8e489744f251a58 /lib/Target/ARM/ARMInstrInfo.td | |
| parent | 2318508117fbc567bfef5b67a63c91ff7fad2697 (diff) | |
| download | llvm-8c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4.tar.gz llvm-8c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4.tar.bz2 llvm-8c9e52a9fc1f99cf80c499ef10e6c8a54ef899d4.tar.xz | |
ARM: Make "SMC" instructions conditional on new TrustZone architecture feature.
These instructions aren't universally available, but depend on a specific
extension to the normal ARM architecture (rather than, say, v6/v7/...) so a new
feature is appropriate.
This also enables the feature by default on A-class cores which usually have
these extensions, to avoid breaking existing code and act as a sensible
default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179171 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/ARMInstrInfo.td')
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index 11550c5ae6..93c18ae295 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/lib/Target/ARM/ARMInstrInfo.td @@ -221,6 +221,9 @@ def HasDB : Predicate<"Subtarget->hasDataBarrier()">, def HasMP : Predicate<"Subtarget->hasMPExtension()">, AssemblerPredicate<"FeatureMP", "mp-extensions">; +def HasTrustZone : Predicate<"Subtarget->hasTrustZone()">, + AssemblerPredicate<"FeatureTrustZone", + "TrustZone">; def UseNEONForFP : Predicate<"Subtarget->useNEONForSinglePrecisionFP()">; def DontUseNEONForFP : Predicate<"!Subtarget->useNEONForSinglePrecisionFP()">; def IsThumb : Predicate<"Subtarget->isThumb()">, @@ -2077,7 +2080,7 @@ let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1, Uses = [SP] in { // Secure Monitor Call is a system instruction. def SMC : ABI<0b0001, (outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt", - []> { + []>, Requires<[IsARM, HasTrustZone]> { bits<4> opt; let Inst{23-4} = 0b01100000000000000111; let Inst{3-0} = opt; |