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| author | Vladimir N. Makarov <vmakarov@redhat.com> | 2023-10-31 10:54:43 -0400 |
|---|---|---|
| committer | Vladimir N. Makarov <vmakarov@redhat.com> | 2023-10-31 11:45:40 -0400 |
| commit | 9119b008b4195e06012a485ec01a8bb0e43266be (patch) | |
| tree | d3747dd736261c38d07c8ed39aee66db4af62c6e /libcpp/line-map.cc | |
| parent | 3e888f94624294d2b9b34ebfee0916768e5d9c3f (diff) | |
| download | gcc-9119b008b4195e06012a485ec01a8bb0e43266be.zip gcc-9119b008b4195e06012a485ec01a8bb0e43266be.tar.gz gcc-9119b008b4195e06012a485ec01a8bb0e43266be.tar.bz2 | |
[RA]: Fixing LRA cycling for multi-reg variable containing a fixed reg
PR111971 test case uses a multi-reg variable containing a fixed reg. LRA
rejects such multi-reg because of this when matching the constraint for
an asm insn. The rejection results in LRA cycling. The patch fixes this issue.
gcc/ChangeLog:
PR rtl-optimization/111971
* lra-constraints.cc: (process_alt_operands): Don't check start
hard regs for regs originated from register variables.
gcc/testsuite/ChangeLog:
PR rtl-optimization/111971
* gcc.target/powerpc/pr111971.c: New test.
Diffstat (limited to 'libcpp/line-map.cc')
0 files changed, 0 insertions, 0 deletions