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| author | Peter Bergner <bergner@vnet.ibm.com> | 2013-09-05 09:09:07 -0500 |
|---|---|---|
| committer | Peter Bergner <bergner@gcc.gnu.org> | 2013-09-05 09:09:07 -0500 |
| commit | 80a18161003e982d8a741d475dec2a40ce986320 (patch) | |
| tree | 928bc1d2eaf23a9ea55dbb9f5256f08330b238a5 /gcc | |
| parent | 6994430ae0451113e9d69bde307ed46a4fafe6ce (diff) | |
| download | gcc-80a18161003e982d8a741d475dec2a40ce986320.zip gcc-80a18161003e982d8a741d475dec2a40ce986320.tar.gz gcc-80a18161003e982d8a741d475dec2a40ce986320.tar.bz2 | |
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
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/reginfo.c | 21 |
2 files changed, 14 insertions, 13 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 44a2346..c6d9c01 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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. diff --git a/gcc/reginfo.c b/gcc/reginfo.c index 1fb6b5d..49a7a58 100644 --- a/gcc/reginfo.c +++ b/gcc/reginfo.c @@ -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) |