72 lines
1.8 KiB
Diff
72 lines
1.8 KiB
Diff
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From b4035128ba8f8bbbf9527f54f261a87b304ca4c5 Mon Sep 17 00:00:00 2001
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From: Claudiu Zissulescu <claziss@synopsys.com>
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Date: Mon, 9 Nov 2015 15:23:39 +0100
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Subject: [PATCH] Handle correctly compare arguments
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---
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gcc/config/arc/arc.c | 24 ++++++++++++++++++------
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1 files changed, 18 insertions(+), 6 deletions(-)
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diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
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index bd53525..caf483b 100644
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--- a/gcc/config/arc/arc.c
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+++ b/gcc/config/arc/arc.c
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@@ -1998,7 +1998,7 @@ gen_compare_reg (rtx comparison, enum machine_mode omode)
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rtx y = XEXP (comparison, 1);
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rtx tmp, cc_reg;
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enum machine_mode mode, cmode;
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-
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+ bool swap = false;
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cmode = GET_MODE (x);
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if (cmode == VOIDmode)
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@@ -2073,6 +2073,7 @@ gen_compare_reg (rtx comparison, enum machine_mode omode)
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rtx op0 = gen_rtx_REG (cmode, 0);
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rtx op1 = gen_rtx_REG (cmode, GET_MODE_SIZE (cmode) / UNITS_PER_WORD);
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+ swap = false;
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switch (code)
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{
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case NE: case EQ: case GT: case UNLE: case GE: case UNLT:
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@@ -2080,22 +2081,33 @@ gen_compare_reg (rtx comparison, enum machine_mode omode)
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break;
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case LT: case UNGE: case LE: case UNGT:
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code = swap_condition (code);
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- tmp = x;
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- x = y;
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- y = tmp;
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+ swap = true;
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break;
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default:
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gcc_unreachable ();
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}
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if (currently_expanding_to_rtl)
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{
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- emit_move_insn (op0, x);
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- emit_move_insn (op1, y);
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+ if (swap)
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+ {
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+ emit_move_insn (op0, y);
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+ emit_move_insn (op1, x);
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+ }
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+ else
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+ {
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+ emit_move_insn (op0, x);
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+ emit_move_insn (op1, y);
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+ }
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}
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else
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{
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gcc_assert (rtx_equal_p (op0, x));
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gcc_assert (rtx_equal_p (op1, y));
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+ if (swap)
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+ {
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+ op0 = y;
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+ op1 = x;
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+ }
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}
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emit_insn (gen_cmp_float (cc_reg, gen_rtx_COMPARE (mode, op0, op1)));
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}
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--
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2.5.0
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