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| author | Joey Gouly <joey.gouly@arm.com> | 2013-07-17 13:59:38 +0000 |
|---|---|---|
| committer | Joey Gouly <joey.gouly@arm.com> | 2013-07-17 13:59:38 +0000 |
| commit | 19c14abf1c4ccebfa7d07bdd6ea8462a15c0b749 (patch) | |
| tree | 3b58af9c3707157bc61f555db9f6a2ef18229978 /lib/Target/ARM/MCTargetDesc | |
| parent | 946dbd83df0aa42e67a0a17af32475b273c2e8f8 (diff) | |
| download | llvm-19c14abf1c4ccebfa7d07bdd6ea8462a15c0b749.tar.gz llvm-19c14abf1c4ccebfa7d07bdd6ea8462a15c0b749.tar.bz2 llvm-19c14abf1c4ccebfa7d07bdd6ea8462a15c0b749.tar.xz | |
[ARMv8] Add support for the NEON instructions vmaxnm/vminnm.
This adds a new class for non-predicable NEON instructions and a
new DecoderNamespace for v8 NEON instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186504 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM/MCTargetDesc')
| -rw-r--r-- | lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp index 8631d81ea0..a18d465f04 100644 --- a/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp +++ b/lib/Target/ARM/MCTargetDesc/ARMMCCodeEmitter.cpp @@ -315,6 +315,8 @@ public: unsigned EncodedValue) const; unsigned NEONThumb2DupPostEncoder(const MCInst &MI, unsigned EncodedValue) const; + unsigned NEONThumb2V8PostEncoder(const MCInst &MI, + unsigned EncodedValue) const; unsigned VFPThumb2PostEncoder(const MCInst &MI, unsigned EncodedValue) const; @@ -389,6 +391,17 @@ unsigned ARMMCCodeEmitter::NEONThumb2DupPostEncoder(const MCInst &MI, return EncodedValue; } +/// Post-process encoded NEON v8 instructions, and rewrite them to Thumb2 form +/// if we are in Thumb2. +unsigned ARMMCCodeEmitter::NEONThumb2V8PostEncoder(const MCInst &MI, + unsigned EncodedValue) const { + if (isThumb2()) { + EncodedValue |= 0xC000000; // Set bits 27-26 + } + + return EncodedValue; +} + /// VFPThumb2PostEncoder - Post-process encoded VFP instructions and rewrite /// them to their Thumb2 form if we are currently in Thumb2 mode. unsigned ARMMCCodeEmitter:: |