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| author | liuhongt <hongtao.liu@intel.com> | 2021-12-14 09:47:08 +0800 |
|---|---|---|
| committer | liuhongt <hongtao.liu@intel.com> | 2021-12-15 07:40:03 +0800 |
| commit | a2a0c91b47537b16908981e206f4e42db8425eca (patch) | |
| tree | 4c22c9783b1f715a83067809c858edeaa617908f /gcc | |
| parent | 9a4b4514bde2fe2f287f6549ef51326fb8918008 (diff) | |
| download | gcc-a2a0c91b47537b16908981e206f4e42db8425eca.zip gcc-a2a0c91b47537b16908981e206f4e42db8425eca.tar.gz gcc-a2a0c91b47537b16908981e206f4e42db8425eca.tar.bz2 | |
Fix ICE. [PR103682]
Check is_gimple_assign before gimple_assign_rhs_code.
gcc/ChangeLog:
PR target/103682
* tree-ssa-ccp.c (optimize_atomic_bit_test_and): Check
is_gimple_assign before gimple_assign_rhs_code.
gcc/testsuite/ChangeLog:
* gcc.c-torture/compile/pr103682.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/compile/pr103682.c | 3 | ||||
| -rw-r--r-- | gcc/tree-ssa-ccp.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/gcc/testsuite/gcc.c-torture/compile/pr103682.c b/gcc/testsuite/gcc.c-torture/compile/pr103682.c new file mode 100644 index 0000000..5ee4b21 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/compile/pr103682.c @@ -0,0 +1,3 @@ +int bug(unsigned *ready, unsigned u) { + return __atomic_fetch_and (ready, ~u, 0) & u; +} diff --git a/gcc/tree-ssa-ccp.c b/gcc/tree-ssa-ccp.c index 9e12da8..a5b1f60 100644 --- a/gcc/tree-ssa-ccp.c +++ b/gcc/tree-ssa-ccp.c @@ -3703,8 +3703,8 @@ optimize_atomic_bit_test_and (gimple_stmt_iterator *gsip, g = SSA_NAME_DEF_STMT (mask); } - rhs_code = gimple_assign_rhs_code (g); - if (rhs_code != LSHIFT_EXPR + if (!is_gimple_assign (g) + || gimple_assign_rhs_code (g) != LSHIFT_EXPR || !integer_onep (gimple_assign_rhs1 (g))) return; bit = gimple_assign_rhs2 (g); |