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Commit Graph

10 Commits

Author SHA1 Message Date
Bruno Cardoso Lopes
228d126d6f Add encoding testcases for ARM vcvtr variations
llvm-svn: 124289
2011-01-26 13:53:38 +00:00
Owen Anderson
ed4acd59cb When matching asm operands, always try to match the most restricted type first.
Unfortunately, while this is the "right" thing to do, it breaks some ARM
asm parsing tests because MemMode5 and ThumbMemModeReg are ambiguous.  This
is tricky to resolve since neither is a subset of the other.

XFAIL the test for now.  The old way was broken in other ways, just ways
we didn't happen to be testing, and our ARM asm parsing is going to require
significant revisiting at a later point anyways.

llvm-svn: 123786
2011-01-18 23:01:21 +00:00
Bruno Cardoso Lopes
e0f8fee637 Create two new generic classes to represent the following VMRS/VMSR variations:
vmrs  reg, fpexc
vmrs  reg, fpsid
vmsr  fpexc, reg
vmsr  fpsid, reg

llvm-svn: 123783
2011-01-18 21:58:20 +00:00
Bill Wendling
f0a1acba8c Proper encoding for VLDM and VSTM instructions. The register lists for these
instructions have to distinguish between lists of single- and double-precision
registers in order for the ASM matcher to do a proper job. In all other
respects, a list of single- or double-precision registers are the same as a list
of GPR registers.

llvm-svn: 119460
2010-11-17 04:32:08 +00:00
Bill Wendling
990c247994 Add encoding for VSTR.
llvm-svn: 118220
2010-11-04 00:59:42 +00:00
Bill Wendling
34599f4aa8 The MC code couldn't handle ARM LDR instructions with negative offsets:
vldr.64 d1, [r0, #-32]

The problem was with how the addressing mode 5 encodes the offsets. This change
makes sure that the way offsets are handled in addressing mode 5 is consistent
throughout the MC code. It involves re-refactoring the "getAddrModeImmOpValue"
method into an "Imm12" and "addressing mode 5" version. But not to worry! The
majority of the duplicated code has been unified.

llvm-svn: 118144
2010-11-03 01:49:29 +00:00
Bill Wendling
1546322a9c Rename getAddrModeImm12OpValue to getAddrModeImmOpValue and expand it to work
with immediates up to 16-bits in size. The same logic is applied to other LDR
encodings, e.g. VLDR, but which use a different immediate bit width (8-bits in
VLDR's case). Removing the "12" allows it to be more generic.

llvm-svn: 118094
2010-11-02 22:31:46 +00:00
Bill Wendling
af717e3c58 Use ARM-style comments.
llvm-svn: 117955
2010-11-01 21:16:39 +00:00
Jim Grosbach
76910aa62f Mark ARM subtarget features that are available for the assembler.
llvm-svn: 117929
2010-11-01 16:59:54 +00:00
Bill Wendling
b68e0d0ee3 Some instructions end with an "ls" prefix, but it doesn't indicate that they are
conditional. Check for those instructions explicitly.

llvm-svn: 117747
2010-10-29 23:50:21 +00:00