[Bug target/40680] extra register move

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=40680

--- Comment #3 from Andrew Pinski  ---
Looks like this was fixed in GCC 5+.

[Bug target/40680] extra register move

[carrot at google dot com]

--- Comment #1 from carrot at google dot com  2009-07-08 09:36 ---
Created an attachment (id=18155)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18155action=view)
test case


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40680

[Bug target/40680] extra register move

[ramana at gcc dot gnu dot org]

--- Comment #2 from ramana at gcc dot gnu dot org  2009-07-08 10:00 ---
However Confirmed with trunk for Thumb1. The extra move doesn't appear for ARM
or Thumb2 . 

The code below is what is generated for Thumb2 or ARM .

.type   _ZN3CCC5funcAEv, %function
_ZN3CCC5funcAEv:
.fnstart
.LFB2:
.cfi_startproc
.cfi_personality 0x0,__gxx_personality_v0
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 0, uses_anonymous_args = 0
push{r3, r4, r5, lr}@
.save {r3, r4, r5, lr}
.cfi_def_cfa_offset 16
mov r5, r0  @ this, this
.cfi_offset 14, -4
.cfi_offset 5, -8
.cfi_offset 4, -12
.cfi_offset 3, -16
ldr r0, [r0, #0]@ float @, variable.fRadius
bl  _Z3foof @
ldr r1, [r5, #4]@, variable.flag
mov r4, r0  @ radius,
bl  _Z3barfi@
mov r0, r4  @, data$fSignBitInt
bl  _Z3fffi @
mov r5, r0  @ D.1797,
mov r0, r4  @, data$fSignBitInt
bl  _Z3fffi @
mov r1, r0  @ D.1803,
mov r0, r5  @, D.1797
bl  _Z3setii@
pop {r3, r4, r5, pc}
.cfi_endproc


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ramana at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|UNCONFIRMED |NEW
 Ever Confirmed|0   |1
   Last reconfirmed|-00-00 00:00:00 |2009-07-08 10:00:06
   date||


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40680