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| author | Andrew Hsieh <andrewhsieh@google.com> | 2014-09-03 15:56:31 +0000 |
|---|---|---|
| committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2014-09-03 15:56:31 +0000 |
| commit | 4254ad78d813b8c4cfc6c07218aee6b1be554f23 (patch) | |
| tree | 8e9350d7e0339c5c7da9499ab5742527e21520c6 /gcc-4.9/gcc/optabs.c | |
| parent | 9bba04175106d9b9e8a58715e3e7fa560c13e092 (diff) | |
| parent | e97c99f15937e5762a973b25192aab824126a6d3 (diff) | |
| download | toolchain_gcc-4254ad78d813b8c4cfc6c07218aee6b1be554f23.tar.gz toolchain_gcc-4254ad78d813b8c4cfc6c07218aee6b1be554f23.tar.bz2 toolchain_gcc-4254ad78d813b8c4cfc6c07218aee6b1be554f23.zip | |
Merge "[gcc-4.9] Merge svn r214745 from google/gcc-4_9 branch. Merge gcc-4_9 source r214745 from google/gcc-4_9 branch."
Diffstat (limited to 'gcc-4.9/gcc/optabs.c')
| -rw-r--r-- | gcc-4.9/gcc/optabs.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc-4.9/gcc/optabs.c b/gcc-4.9/gcc/optabs.c index cd31b0e63..39e8cd4f6 100644 --- a/gcc-4.9/gcc/optabs.c +++ b/gcc-4.9/gcc/optabs.c @@ -7337,7 +7337,10 @@ expand_atomic_test_and_set (rtx target, rtx mem, enum memmodel model) perform the operation. */ if (!ret) { - emit_move_insn (subtarget, mem); + /* If the result is ignored skip the move to target. */ + if (subtarget != const0_rtx) + emit_move_insn (subtarget, mem); + emit_move_insn (mem, trueval); ret = subtarget; } |