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| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-10-30 00:19:58 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 2001-10-30 00:19:58 +0000 |
| commit | d864b7196af47ff5064e527a65129b39dc524a52 (patch) | |
| tree | ee0f3b7f02f54b596230f73fb1f309766c065aa0 /gcc/reload1.c | |
| parent | f7c27e952edca68d2b3b3eb83aedaaa764c6189d (diff) | |
| download | gcc-d864b7196af47ff5064e527a65129b39dc524a52.tar.gz | |
* reload1.c (eliminate_regs): Test for reg_renumber being allocated
before referencing it.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46623 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index 2947f1aecb6..c5158c7d81b 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -2298,8 +2298,8 @@ eliminate_regs (x, mem_mode, insn) return plus_constant (ep->to_rtx, ep->previous_offset); } - else if (reg_renumber[regno] < 0 && reg_equiv_constant - && reg_equiv_constant[regno] + else if (reg_renumber && reg_renumber[regno] < 0 + && reg_equiv_constant && reg_equiv_constant[regno] && ! CONSTANT_P (reg_equiv_constant[regno])) return eliminate_regs (copy_rtx (reg_equiv_constant[regno]), mem_mode, insn); @@ -2365,7 +2365,7 @@ eliminate_regs (x, mem_mode, insn) rtx new0 = eliminate_regs (XEXP (x, 0), mem_mode, insn); rtx new1 = eliminate_regs (XEXP (x, 1), mem_mode, insn); - if (new0 != XEXP (x, 0) || new1 != XEXP (x, 1)) + if (reg_renumber && (new0 != XEXP (x, 0) || new1 != XEXP (x, 1))) { /* If one side is a PLUS and the other side is a pseudo that didn't get a hard register but has a reg_equiv_constant, @@ -2473,7 +2473,8 @@ eliminate_regs (x, mem_mode, insn) { new = eliminate_regs (XEXP (x, 1), mem_mode, insn); if (new != XEXP (x, 1)) - return gen_rtx_fmt_ee (GET_CODE (x), GET_MODE (x), XEXP (x, 0), new); + return + gen_rtx_fmt_ee (GET_CODE (x), GET_MODE (x), XEXP (x, 0), new); } return x; |