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author | Richard Sandiford <richard.sandiford@arm.com> | 2023-02-01 09:53:50 +0000 |
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committer | Richard Sandiford <richard.sandiford@arm.com> | 2023-02-01 09:53:50 +0000 |
commit | 3cef9dca57ba70576dc387c40e600f00de5d55de (patch) | |
tree | 3aa8896679b3cdd5f533924484b50df16f14c7c8 /gcc | |
parent | f3b1af49702a3d1989fbe512b004a129f2c50e07 (diff) | |
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compare-elim: Fix an RTL checking failure
find_flags_uses_in_insn used SET_SRC without first checking
for a SET. This showed up as an RTL checking failure in
g++.dg/torture/pr90994.C on aarch64.
gcc/
* compare-elim.cc (find_flags_uses_in_insn): Guard use of SET_SRC.
Diffstat (limited to 'gcc')
-rw-r--r-- | gcc/compare-elim.cc | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/compare-elim.cc b/gcc/compare-elim.cc index 5cbd2c02..c59dc0c 100644 --- a/gcc/compare-elim.cc +++ b/gcc/compare-elim.cc @@ -254,7 +254,8 @@ find_flags_uses_in_insn (struct comparison *cmp, rtx_insn *insn) x = PATTERN (insn); if (GET_CODE (x) == PARALLEL) x = XVECEXP (x, 0, 0); - x = SET_SRC (x); + if (GET_CODE (x) == SET) + x = SET_SRC (x); if (GET_CODE (x) == IF_THEN_ELSE) x = XEXP (x, 0); if (COMPARISON_P (x) |