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5 Commits

Author SHA1 Message Date
Saleem Abdulrasool
53e8c5a4af ARM: fixup more tests to specify the target more explicitly
This changes the tests that were targeting ARM EABI to explicitly specify the
environment rather than relying on the default.  This breaks with the new
Windows on ARM support when running the tests on Windows where the default
environment is no longer EABI.

Take the opportunity to avoid a pointless redirect (helps when trying to debug
with providing a command line invocation which can be copy and pasted) and
removing a few greps in favour of FileCheck.

llvm-svn: 205541
2014-04-03 16:01:44 +00:00
Tilmann Scheller
3f19743d37 [ARM] Use FileCheck instead of grep for ARM LDRD negative tests.
llvm-svn: 191683
2013-09-30 17:31:26 +00:00
Tilmann Scheller
e69a5118c3 [ARM] Assembler: ARM LDRD with writeback requires the base register to be different from the destination registers.
See ARM ARM A8.8.72.

Violating this constraint results in unpredictable behavior.

llvm-svn: 191678
2013-09-30 16:11:48 +00:00
Tilmann Scheller
d1b1de4b4c [ARM] Assembler: Add more negative tests for ARM LDRD.
llvm-svn: 191664
2013-09-30 13:04:22 +00:00
Tilmann Scheller
758b35d6b8 ARM: Teach assembler to enforce constraints for ARM LDRD destination register operands.
As specified in A8.8.72/A8.8.73/A8.8.74 in the ARM ARM, all variants of the ARM LDRD instruction have the following two constraints:

LDRD<c> <Rt>, <Rt2>, ...

(a) Rt must be even-numbered and not r14
(b) Rt2 must be R(t+1)

If those two constraints are not met the result of executing the instruction will be unpredictable.

Constraint (b) was already enforced, this commit adds support for constraint (a).

Fixes rdar://14479793.

llvm-svn: 191520
2013-09-27 13:28:17 +00:00