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| author | Jakub Jelinek <jakub@redhat.com> | 2002-06-11 00:07:45 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2002-06-11 00:07:45 +0200 |
| commit | 7b668f9ed038456ca0c0cc048978bd4241f4c311 (patch) | |
| tree | 1b4bc9c9cb931afa6b95c9587f431f9506d34657 /gcc/cse.c | |
| parent | 85d490584b173dd86e67af37a277a6b5fe823422 (diff) | |
| download | gcc-7b668f9ed038456ca0c0cc048978bd4241f4c311.zip gcc-7b668f9ed038456ca0c0cc048978bd4241f4c311.tar.gz gcc-7b668f9ed038456ca0c0cc048978bd4241f4c311.tar.bz2 | |
re PR rtl-optimization/6759 (ice when compiling 32 bit sparc code)
PR optimization/6759
* cse.c (cse_insn): Fold src_eqv just once, store it folded back into
the REQ_EQUAL note.
* g++.dg/opt/cse1.C: New test.
From-SVN: r54469
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 6 |
1 files changed, 4 insertions, 2 deletions
@@ -4915,7 +4915,10 @@ cse_insn (insn, libcall_insn) && (tem = find_reg_note (insn, REG_EQUAL, NULL_RTX)) != 0 && (! rtx_equal_p (XEXP (tem, 0), SET_SRC (sets[0].rtl)) || GET_CODE (SET_DEST (sets[0].rtl)) == STRICT_LOW_PART)) - src_eqv = canon_reg (XEXP (tem, 0), NULL_RTX); + { + src_eqv = fold_rtx (canon_reg (XEXP (tem, 0), NULL_RTX), insn); + XEXP (tem, 0) = src_eqv; + } /* Canonicalize sources and addresses of destinations. We do this in a separate pass to avoid problems when a MATCH_DUP is @@ -5019,7 +5022,6 @@ cse_insn (insn, libcall_insn) eqvmode = GET_MODE (SUBREG_REG (XEXP (dest, 0))); do_not_record = 0; hash_arg_in_memory = 0; - src_eqv = fold_rtx (src_eqv, insn); src_eqv_hash = HASH (src_eqv, eqvmode); /* Find the equivalence class for the equivalent expression. */ |