llvm-6502/test/MC
Tilmann Scheller cca1146119 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191520 91177308-0d34-0410-b5e6-96231b3b80d8
2013-09-27 13:28:17 +00:00
..
AArch64 Initial support for Neon scalar instructions. 2013-09-24 02:47:27 +00:00
ARM ARM: Teach assembler to enforce constraints for ARM LDRD destination register operands. 2013-09-27 13:28:17 +00:00
AsmParser MCParser/Debug info: Accept line number 0 as a legitimate value, since 2013-09-26 23:37:11 +00:00
COFF COFF: Ensure that objects produced by LLVM link with /safeseh 2013-09-17 23:18:05 +00:00
Disassembler Fixing Intel format of the vshufpd instruction. 2013-09-27 01:44:23 +00:00
ELF Implements parsing and emitting of .cfi_window_save in MC. 2013-09-26 14:49:40 +00:00
MachO Fixed a crash in the integrated assembler for Mach-O when a symbol difference 2013-09-05 20:25:06 +00:00
Markup MC: Simple example parser for MC assembly markup. 2012-10-31 23:24:13 +00:00
Mips [mips][msa] Direct Object Emission for 3RF instructions. 2013-09-26 21:31:43 +00:00
PowerPC PPC: Allow partial fills in writeNopData() 2013-09-26 09:18:48 +00:00
SystemZ [SystemZ] Add unsigned compare-and-branch instructions 2013-09-18 09:56:40 +00:00
X86 Fixing Intel format of the vshufpd instruction. 2013-09-27 01:44:23 +00:00