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match_asm_constraints: Use copy_rtx where needed (PR88001)

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The new insn here (temporarily) illegally shares RTL.  This fixes it.


	PR rtl-optimization/88001
	* function.c (match_asm_constraints_1): Don't invalidly share RTL.

From-SVN: r267122
This commit is contained in:
Segher Boessenkool 2018-12-14 09:29:34 +01:00 committed by Segher Boessenkool
parent b30bde1063
commit 6c4ff3c98c
2 changed files with 6 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2018-12-14 Segher Boessenkool <segher@kernel.crashing.org>
PR rtl-optimization/88001
* function.c (match_asm_constraints_1): Don't invalidly share RTL.
2018-12-14 Bin Cheng <bin.cheng@linux.alibaba.com>
* auto-profile.c (afdo_annotate_cfg): Call update_max_bb_count even

2
gcc/function.c
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@ -6529,7 +6529,7 @@ match_asm_constraints_1 (rtx_insn *insn, rtx *p_sets, int noutputs)
output_matched[match] = true;
start_sequence ();
emit_move_insn (output, input);
emit_move_insn (output, copy_rtx (input));
insns = get_insns ();
end_sequence ();
emit_insn_before (insns, insn);