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revert: optabs.c (prepare_cmp_insn): Temporarily disable test that causes spurious differences between trunk and...

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2009-05-12  Paolo Bonzini  <bonzini@gnu.org>

	Revert:

	2009-05-12  Paolo Bonzini  <bonzini@gnu.org>

	* optabs.c (prepare_cmp_insn): Temporarily disable test that
	causes spurious differences between trunk and cond-optab branch.

From-SVN: r147426
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Paolo Bonzini 2009-05-12 09:52:27 +00:00 committed by Paolo Bonzini
parent f90b7a5a79
commit 5e8d18263d
2 changed files with 20 additions and 0 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2009-05-12 Paolo Bonzini <bonzini@gnu.org>
Revert:
2009-05-12 Paolo Bonzini <bonzini@gnu.org>
* optabs.c (prepare_cmp_insn): Temporarily disable test that
causes spurious differences between trunk and cond-optab branch.
2009-05-12 Paolo Bonzini <bonzini@gnu.org>
* dojump.c (compare_from_rtx): Delete.

11
gcc/optabs.c
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@ -4015,6 +4015,17 @@ prepare_cmp_insn (rtx x, rtx y, enum rtx_code comparison, rtx size,
gcc_assert (methods == OPTAB_DIRECT || methods == OPTAB_WIDEN
|| methods == OPTAB_LIB_WIDEN);
/* If we are optimizing, force expensive constants into a register. */
if (CONSTANT_P (x) && optimize
&& (rtx_cost (x, COMPARE, optimize_insn_for_speed_p ())
> COSTS_N_INSNS (1)))
x = force_reg (mode, x);
if (CONSTANT_P (y) && optimize
&& (rtx_cost (y, COMPARE, optimize_insn_for_speed_p ())
> COSTS_N_INSNS (1)))
y = force_reg (mode, y);
#ifdef HAVE_cc0
/* Make sure if we have a canonical comparison. The RTL
documentation states that canonical comparisons are required only