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| author | William Schmidt <wschmidt@gcc.gnu.org> | 2017-06-26 14:19:33 +0000 |
|---|---|---|
| committer | William Schmidt <wschmidt@gcc.gnu.org> | 2017-06-26 14:19:33 +0000 |
| commit | 226ab0a80879f9d758ba992b2fe06ac1049e8a98 (patch) | |
| tree | 7f7d0ec07dc95b2e04ac4540346b411a92cf80a0 /gcc | |
| parent | df11b2ea7f3139e0f786e634040d425421ce77c4 (diff) | |
| download | gcc-226ab0a80879f9d758ba992b2fe06ac1049e8a98.zip gcc-226ab0a80879f9d758ba992b2fe06ac1049e8a98.tar.gz gcc-226ab0a80879f9d758ba992b2fe06ac1049e8a98.tar.bz2 | |
re PR tree-optimization/71815 (SLSR misses several PHI candidate cases)
[gcc]
2016-06-26 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/71815
* gimple-ssa-strength-reduction.c (uses_consumed_by_stmt): New
function.
(find_basis_for_candidate): Call uses_consumed_by_stmt rather than
has_single_use.
(slsr_process_phi): Likewise.
(replace_uncond_cands_and_profitable_phis): Don't replace a
multiply candidate with a stride of 1 (copy or cast).
(phi_incr_cost): Call uses_consumed_by_stmt rather than
has_single_use.
(lowest_cost_path): Likewise.
(total_savings): Likewise.
[gcc/testsuite]
2016-06-26 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
PR tree-optimization/71815
* gcc.dg/tree-ssa/slsr-35.c: Remove -fno-code-hoisting workaround.
* gcc.dg/tree-ssa/slsr-36.c: Likewise.
From-SVN: r249649
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 1 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fbf5203..e41335f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,6 @@ 2016-06-26 Bill Schmidt <wschmidt@linux.vnet.ibm.com> + PR tree-optimization/71815 * gimple-ssa-strength-reduction.c (uses_consumed_by_stmt): New function. (find_basis_for_candidate): Call uses_consumed_by_stmt rather than diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 44ff59b..9278e95 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,5 +1,6 @@ 2016-06-26 Bill Schmidt <wschmidt@linux.vnet.ibm.com> + PR/tree-optimization 71815 * gcc.dg/tree-ssa/slsr-35.c: Remove -fno-code-hoisting workaround. * gcc.dg/tree-ssa/slsr-36.c: Likewise. |