diff options
| author | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-02-03 22:38:56 +0000 |
|---|---|---|
| committer | jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4> | 2016-02-03 22:38:56 +0000 |
| commit | edf6c4d241de869c32bfa3d929e6ebd9d12d4628 (patch) | |
| tree | 7385197301156976f03b41c738131cbaf797b422 /gcc/config/rs6000 | |
| parent | cf8f3ba03ecdcbacfdbfde2792a764cdabb7757c (diff) | |
PR target/69644
* config/rs6000/rs6000.c (rs6000_expand_atomic_compare_and_swap):
Force oldval into register if it does not satisfy reg_or_short_operand
predicate. Fix up formatting.
* gcc.dg/pr69644.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@233113 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/config/rs6000')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index e840a2c2d66..6f382cba996 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -22275,6 +22275,9 @@ rs6000_expand_atomic_compare_and_swap (rtx operands[]) else if (reg_overlap_mentioned_p (retval, oldval)) oldval = copy_to_reg (oldval); + if (mode != TImode && !reg_or_short_operand (oldval, mode)) + oldval = copy_to_mode_reg (mode, oldval); + mem = rs6000_pre_atomic_barrier (mem, mod_s); label1 = NULL_RTX; @@ -22289,10 +22292,8 @@ rs6000_expand_atomic_compare_and_swap (rtx operands[]) x = retval; if (mask) - { - x = expand_simple_binop (SImode, AND, retval, mask, - NULL_RTX, 1, OPTAB_LIB_WIDEN); - } + x = expand_simple_binop (SImode, AND, retval, mask, + NULL_RTX, 1, OPTAB_LIB_WIDEN); cond = gen_reg_rtx (CCmode); /* If we have TImode, synthesize a comparison. */ |