diff options
| author | Yvan Roux <yvan.roux@linaro.org> | 2016-01-12 16:25:46 +0100 |
|---|---|---|
| committer | Linaro Code Review <review@review.linaro.org> | 2016-01-13 09:56:41 +0000 |
| commit | 428ded17977c8142625804eb8f7545ae7bb06f7b (patch) | |
| tree | 62dc59eef237f76cc5179402002a1d5a90118d32 /gcc/testsuite | |
| parent | 70d504cf4dac578be53e6513ca9ed8a8adc2cdb3 (diff) | |
gcc/
Backport from trunk r230786.
2015-11-24 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/68381
* combine.c (is_parallel_of_n_reg_sets): Return false if the pattern
is poisoned.
gcc/testsuite/
Backport from trunk r230809.
2015-11-24 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
PR rtl-optimization/68381
* gcc.c-torture/execute/pr68381.c: New test.
gcc/
Backport from trunk r230946.
2015-11-26 Kyrylo Tkachov <kyrylo.tkachov@arm.com>
* combine.c (subst): Do not return clobber of zero in widening mult
case. Just return x unchanged if it is a no-op substitution.
Change-Id: I3a644b62bce1ddd7d24ebd3b2c604076e040d755
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/pr68381.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr68381.c b/gcc/testsuite/gcc.c-torture/execute/pr68381.c new file mode 100644 index 00000000000..cb6abcb265b --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/pr68381.c @@ -0,0 +1,22 @@ +/* { dg-options "-O -fexpensive-optimizations -fno-tree-bit-ccp" } */ + +__attribute__ ((noinline, noclone)) +int +foo (unsigned short x, unsigned short y) +{ + int r; + if (__builtin_mul_overflow (x, y, &r)) + __builtin_abort (); + return r; +} + +int +main (void) +{ + int x = 1; + int y = 2; + if (foo (x, y) != x * y) + __builtin_abort (); + return 0; +} + |