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[Patch] The comparison in a compare exchange should not take place in VOIDmode

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gcc/

	* builtins.c (expand_builtin_atomic_compare_exchange): Call
	emit_cmp_and_jump_insns with the mode of target.

From-SVN: r224148
This commit is contained in:
James Greenhalgh 2015-06-05 08:47:44 +00:00 • committed by James Greenhalgh
parent edf1fd6def
commit f8940d4a09
2 changed files with 7 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2015-06-05 James Greenhalgh <james.greenhalgh@arm.com>
* builtins.c (expand_builtin_atomic_compare_exchange): Call
emit_cmp_and_jump_insns with the mode of target.
2015-06-05 Venkataramanan Kumar <venkataramanan.kumar@amd.com>
* config/i386/sse.md (sse3_mwait): Swap the operand constriants.

3
gcc/builtins.c
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@ -5471,7 +5471,8 @@ expand_builtin_atomic_compare_exchange (machine_mode mode, tree exp,
the normal case where EXPECT is totally private, i.e. a register. At
which point the store can be unconditional. */
label = gen_label_rtx ();
emit_cmp_and_jump_insns (target, const0_rtx, NE, NULL, VOIDmode, 1, label);
emit_cmp_and_jump_insns (target, const0_rtx, NE, NULL,
GET_MODE (target), 1, label);
emit_move_insn (expect, oldval);
emit_label (label);