| commit | a24476422ba311b83737cf8bdc5892a7fc7514eb | |
| author | Vladimir N. Makarov <vmakarov@redhat.com> | |
| Thu, 4 Apr 2024 20:04:04 +0000 (4 16:04 -0400) | ||
| committer | Vladimir N. Makarov <vmakarov@redhat.com> | |
| Thu, 4 Apr 2024 20:07:10 +0000 (4 16:07 -0400) | ||
| tree | 16f9aa6f9f673beccf8d9835bb67866efb33014d | treesnapshot (tar.gz zip) |
| parent | 7520a4992c94254016085a461c58c972497c4483 | commitdiff |
[PR114415][scheduler]: Fixing wrong code generation
For the test case, the insn scheduler (working for live range
shrinkage) moves insns modifying stack memory before an insn reserving
the stack memory. Comments in the patch contains more details about
the problem and its solution.
gcc/ChangeLog:
PR rtl-optimization/114415
* sched-deps.cc (add_insn_mem_dependence): Add memory check for mem argument.
(sched_analyze_1): Treat stack pointer modification as memory read.
(sched_analyze_2, sched_analyze_insn): Add memory guard for processing pending_read_mems.
* sched-int.h (deps_desc): Add comment to pending_read_mems.
gcc/testsuite/ChangeLog:
PR rtl-optimization/114415
* gcc.target/i386/pr114415.c: New test.
For the test case, the insn scheduler (working for live range
shrinkage) moves insns modifying stack memory before an insn reserving
the stack memory. Comments in the patch contains more details about
the problem and its solution.
gcc/ChangeLog:
PR rtl-optimization/114415
* sched-deps.cc (add_insn_mem_dependence): Add memory check for mem argument.
(sched_analyze_1): Treat stack pointer modification as memory read.
(sched_analyze_2, sched_analyze_insn): Add memory guard for processing pending_read_mems.
* sched-int.h (deps_desc): Add comment to pending_read_mems.
gcc/testsuite/ChangeLog:
PR rtl-optimization/114415
* gcc.target/i386/pr114415.c: New test.
| gcc/sched-deps.cc | diffblobblamehistory | |
| gcc/sched-int.h | diffblobblamehistory | |
| gcc/testsuite/gcc.target/i386/pr114415.c | [new file with mode: 0644] | blob |