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ARM: constrain Thumb LDRLIT pseudo-instructions to r0-r7. 

Previously we only used GPR for the destination placeholder in "ldr rD, [pc,
incorrect codegen under the integrated assembler.

This should fix both issues (which probably only affect MachO targets at the
moment).

rdar://problem/15800156

llvm-svn: 199108
This commit is contained in:
Tim Northover 2014-01-13 14:19:17 +00:00
parent f6c7c18b8e
commit 1328c1ae32
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
llvm/lib/Target/ARM/ARMInstrThumb.td
View File

@ -1312,14 +1312,15 @@ def : T1Pat<(subc tGPR:$lhs, tGPR:$rhs),
def : T1Pat<(ARMWrapper tconstpool :$dst), (tLEApcrel tconstpool :$dst)>;
// GlobalAddress
def tLDRLIT_ga_pcrel : PseudoInst<(outs GPR:$dst), (ins i32imm:$addr),
def tLDRLIT_ga_pcrel : PseudoInst<(outs tGPR:$dst), (ins i32imm:$addr),
IIC_iLoadiALU,
[(set GPR:$dst,
[(set tGPR:$dst,
(ARMWrapperPIC tglobaladdr:$addr))]>,
Requires<[IsThumb, DontUseMovt]>;
def tLDRLIT_ga_abs : PseudoInst<(outs GPR:$dst), (ins i32imm:$src), IIC_iLoad_i,
[(set GPR:$dst,
def tLDRLIT_ga_abs : PseudoInst<(outs tGPR:$dst), (ins i32imm:$src),
IIC_iLoad_i,
[(set tGPR:$dst,
(ARMWrapper tglobaladdr:$src))]>,
Requires<[IsThumb, DontUseMovt]>;