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[ARM] Make the assembler reject unpredictable pre/post-indexed ARM LDRB/LDRSB instruc...
authorTilmann Scheller <t.scheller@samsung.com>
Fri, 1 Aug 2014 12:08:04 +0000 (12:08 +0000)
committerTilmann Scheller <t.scheller@samsung.com>
Fri, 1 Aug 2014 12:08:04 +0000 (12:08 +0000)
commit3b3fa38731702a6fea7f6477ffd9aa41dfe36e30
tree5ba1445edcc13770b893df707d493fac60e8d6datree | snapshot
parent9bd0d2a6a02750f51633ea20394c37a9c5457eaacommit | diff
[ARM] Make the assembler reject unpredictable pre/post-indexed ARM LDRB/LDRSB instructions.

The ARM ARM prohibits LDRB/LDRSB instructions with writeback into the destination register. With this commit this constraint is now enforced and we stop assembling LDRH/LDRSH instructions with unpredictable behavior.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214500 91177308-0d34-0410-b5e6-96231b3b80d8
lib/Target/ARM/AsmParser/ARMAsmParser.cpp diff | blob | history
test/MC/ARM/diagnostics.s diff | blob | history
C/C++ LLVM-based compilers that forbids OOTA behaviors