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(parent: 4035693) | patch
Fix treatment of ARM unallocated hint instructions.
authorQuentin Colombet <qcolombet@apple.com>
Wed, 17 Apr 2013 18:46:12 +0000 (18:46 +0000)
committerQuentin Colombet <qcolombet@apple.com>
Wed, 17 Apr 2013 18:46:12 +0000 (18:46 +0000)
commit7c4cf030a898b5b4e0d2c66adf8dc068b1f1f070
tree9490c14294fd0dc9bb8233941d8c9040cf397227tree | snapshot
parent403569373f1e63cc96ea8274b18088bf7ff17bd6commit | diff
Fix treatment of ARM unallocated hint instructions.
The reference manual defines only 5 permitted values for the immediate field of the "hint" instruction:
1. nop (imm == 0)
2. yield (imm == 1)
3. wfe (imm == 2)
4. wfi (imm == 3)
5. sev (imm == 4)

Therefore, restrict the permitted values for the "hint" instruction to 0 through 4.

Patch by Mihail Popa <Mihail.Popa@arm.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179707 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/ARM/ARMInstrInfo.td diff | blob | history
lib/Target/ARM/AsmParser/ARMAsmParser.cpp diff | blob | history
lib/Target/ARM/Disassembler/ARMDisassembler.cpp diff | blob | history
test/MC/ARM/basic-arm-instructions.s diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors