diff options
| author | Richard Sandiford <richard.sandiford@arm.com> | 2020-01-20 18:28:38 +0000 |
|---|---|---|
| committer | Richard Sandiford <richard.sandiford@arm.com> | 2020-01-23 09:19:15 +0000 |
| commit | ccb68179642cf7ba5ee05a0d8571a95d0145e3a2 (patch) | |
| tree | bb866a5e9962d58d733d13c3c95c251dc61c33e9 /libgcc/libgcov-driver.c | |
| parent | 92bea423c295f5c6c9b0cf06a5a555011cc98bdc (diff) | |
| download | gcc-ccb68179642cf7ba5ee05a0d8571a95d0145e3a2.zip gcc-ccb68179642cf7ba5ee05a0d8571a95d0145e3a2.tar.gz gcc-ccb68179642cf7ba5ee05a0d8571a95d0145e3a2.tar.bz2 | |
auto-inc-dec: Don't add incs/decs to bare CLOBBERs [PR93124]
In this PR, auto-inc-dec was trying to turn:
(set (reg X) (plus (reg X) (const_int N)))
(clobber (mem (reg X)))
into:
(clobber (mem (pre_modify (reg X) ...)))
But bare clobber insns are just there to describe dataflow. They're
not supposed to generate any code.
2020-01-23 Richard Sandiford <richard.sandiford@arm.com>
gcc/
PR rtl-optimization/93124
* auto-inc-dec.c (merge_in_block): Don't add auto inc/decs to
bare USE and CLOBBER insns.
gcc/testsuite/
* gcc.dg/torture/pr93124.c: New test.
Diffstat (limited to 'libgcc/libgcov-driver.c')
0 files changed, 0 insertions, 0 deletions