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re PR target/58139 (PowerPC volatile VSX register live across call) 

PR target/58139
	* reginfo.c (choose_hard_reg_mode): Scan through all mode classes
	looking for widest mode.

From-SVN: r202286
This commit is contained in:
Peter Bergner 2013-09-05 09:09:07 -05:00 committed by Peter Bergner
parent 6994430ae0
commit 80a1816100
2 changed files with 14 additions and 13 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2013-09-05 Peter Bergner <bergner@vnet.ibm.com>
PR target/58139
* reginfo.c (choose_hard_reg_mode): Scan through all mode classes
looking for widest mode.
2013-09-05 Eric Botcazou <ebotcazou@adacore.com>
* config.gcc (*-*-vxworks*): Do not override an existing extra_objs.

21
gcc/reginfo.c
View File

@ -620,40 +620,35 @@ choose_hard_reg_mode (unsigned int regno ATTRIBUTE_UNUSED,
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) hard_regno_nregs[regno][mode] == nregs
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
found_mode = mode;
if (found_mode != VOIDmode)
return found_mode;
for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT);
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) hard_regno_nregs[regno][mode] == nregs
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
found_mode = mode;
if (found_mode != VOIDmode)
return found_mode;
for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT);
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) hard_regno_nregs[regno][mode] == nregs
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
found_mode = mode;
if (found_mode != VOIDmode)
return found_mode;
for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT);
mode != VOIDmode;
mode = GET_MODE_WIDER_MODE (mode))
if ((unsigned) hard_regno_nregs[regno][mode] == nregs
&& HARD_REGNO_MODE_OK (regno, mode)
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
found_mode = mode;
if (found_mode != VOIDmode)