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| author | Andrew MacLeod <amacleod@redhat.com> | 2011-11-10 16:39:32 +0000 |
|---|---|---|
| committer | Andrew Macleod <amacleod@gcc.gnu.org> | 2011-11-10 16:39:32 +0000 |
| commit | 154b68db9bee50c8acb1c0440987f4ef176d2a65 (patch) | |
| tree | b11770e605e88e4c894d09421e2b55b78d37b982 /gcc/optabs.c | |
| parent | c8bf99b4e84b9b0783aca23ecc85425cb3569f16 (diff) | |
| download | gcc-154b68db9bee50c8acb1c0440987f4ef176d2a65.zip gcc-154b68db9bee50c8acb1c0440987f4ef176d2a65.tar.gz gcc-154b68db9bee50c8acb1c0440987f4ef176d2a65.tar.bz2 | |
re PR rtl-optimization/51040 (ICE: RTL check: access of elt 1 of 'not' with last elt 0 in gen_rtx_fmt_ee_stat, at ./genrtl.h:33 with __atomic_nand_fetch())
PR rtl-optimization/51040
* optabs.c (expand_atomic_fetch_op): Patchup code for NAND should be AND
followed by NOT.
* builtins.c (expand_builtin_atomic_fetch_op): Patchup code for NAND
should be AND followed by NOT.
* testsuite/gcc.dg/atomic-noinline[-aux].c: Test no-inline NAND and
patchup code.
From-SVN: r181259
Diffstat (limited to 'gcc/optabs.c')
| -rw-r--r-- | gcc/optabs.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/gcc/optabs.c b/gcc/optabs.c index b2388ec..c87f5cd 100644 --- a/gcc/optabs.c +++ b/gcc/optabs.c @@ -7875,8 +7875,15 @@ expand_atomic_fetch_op (rtx target, rtx mem, rtx val, enum rtx_code code, Fetch_before == after REVERSE_OP val. */ if (!after) code = optab.reverse_code; - result = expand_simple_binop (mode, code, result, val, target, true, - OPTAB_LIB_WIDEN); + if (code == NOT) + { + result = expand_simple_binop (mode, AND, result, val, NULL_RTX, + true, OPTAB_LIB_WIDEN); + result = expand_simple_unop (mode, NOT, result, target, true); + } + else + result = expand_simple_binop (mode, code, result, val, target, + true, OPTAB_LIB_WIDEN); return result; } } |