This is a fix for this patch:
http://gcc.gnu.org/ml/gcc-patches/2013-04/msg01621.html
If someone compiles with -mgeneral-regs-only then those instructions
shouldn't be used. We can enforce that by adding the fp attribute to
the relevant alternatives in the patterns.
Regression tests all good.
OK for trunk?
Cheers,
Ian
2013-05-01 Ian Bolton <ian.bol...@arm.com>
* config/aarch64/aarch64.md (movsi_aarch64): Only allow to/from
S reg when fp attribute set.
(movdi_aarch64): Only allow to/from D reg when fp attribute set.
Index: gcc/config/aarch64/aarch64.md
===================================================================
--- gcc/config/aarch64/aarch64.md (revision 198456)
+++ gcc/config/aarch64/aarch64.md (working copy)
@@ -825,7 +825,7 @@ (define_insn "*movsi_aarch64"
fmov\\t%s0, %s1"
[(set_attr "v8type" "move,alu,load1,load1,store1,store1,fmov,fmov,fmov")
(set_attr "mode" "SI")
- (set_attr "fp" "*,*,*,*,*,*,yes,yes,yes")]
+ (set_attr "fp" "*,*,*,yes,*,yes,yes,yes,yes")]
)
(define_insn "*movdi_aarch64"
@@ -850,7 +850,7 @@ (define_insn "*movdi_aarch64"
movi\\t%d0, %1"
[(set_attr "v8type"
"move,move,move,alu,load1,load1,store1,store1,adr,adr,fmov,fmov,fmov,fmov")
(set_attr "mode" "DI")
- (set_attr "fp" "*,*,*,*,*,*,*,*,*,*,yes,yes,yes,yes")]
+ (set_attr "fp" "*,*,*,*,*,yes,*,yes,*,*,yes,yes,yes,yes")]
)
(define_insn "insv_imm<mode>"
