| commit | 2dde9f326ded84814a78c3044294b535c1f97b41 | |
| author | Richard Biener <rguenther@suse.de> | |
| Thu, 30 Nov 2023 11:38:53 +0000 (30 12:38 +0100) | ||
| committer | Richard Biener <rguenther@suse.de> | |
| Thu, 30 Nov 2023 12:31:26 +0000 (30 13:31 +0100) | ||
| tree | 2c046a11b555c269b6aaa78c21693da4ba8761cc | treesnapshot (tar.gz zip) |
| parent | 8a6062a47b33da6d961c6354fd5788bc46aef0a9 | commitdiff |
tree-optimization/112767 - spurious diagnostic after sccp/loop-split swap
We are diagnosing an unreachable loop which we only manage to elide
after the copyprop pass after sccp which leaves the code open for
diagnosing by the intermittent ivcanon pass. The following makes sure
to clean things up a bit earlier, propagating constant final values
to uses immediately.
PR tree-optimization/112767
* tree-scalar-evolution.cc (final_value_replacement_loop):
Propagate constants to immediate uses immediately.
* gcc.dg/tree-ssa/pr112767.c: New testcase.
* gcc.dg/graphite/pr83255.c: Disable SCCP.
We are diagnosing an unreachable loop which we only manage to elide
after the copyprop pass after sccp which leaves the code open for
diagnosing by the intermittent ivcanon pass. The following makes sure
to clean things up a bit earlier, propagating constant final values
to uses immediately.
PR tree-optimization/112767
* tree-scalar-evolution.cc (final_value_replacement_loop):
Propagate constants to immediate uses immediately.
* gcc.dg/tree-ssa/pr112767.c: New testcase.
* gcc.dg/graphite/pr83255.c: Disable SCCP.
| gcc/testsuite/gcc.dg/graphite/pr83255.c | diffblobblamehistory | |
| gcc/testsuite/gcc.dg/tree-ssa/pr112767.c | [new file with mode: 0644] | blob |
| gcc/tree-scalar-evolution.cc | diffblobblamehistory |