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  • Committer: Package Import Robot
  • Author(s): Matthias Klose
  • Date: 2014-12-19 19:48:34 UTC
  • Revision ID: package-import@ubuntu.com-20141219194834-4dz1q7rrn5pad823
Tags: 4.8.4-1
* GCC 4.8.4 release.
  - Fix PR target/61407 (darwin), PR middle-end/58624 (ice),
    PR sanitizer/64265 (wrong code).
* Require recent binutils to pass go test failures.

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.svn/pristine/28/28131b901205b7f3d35e1bac7970c4f7ad2cf9f9.svn-base
 
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gcc/
 
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2012-02-26  Mikael Pettersson  <mikpe@it.uu.se>
 
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        PR rtl-optimization/49847
 
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        * cse.c (fold_rtx) <case CC0>: If prev_insn_cc0 is zero
 
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        don't call equiv_constant on it.
 
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--- a/src/gcc/cse.c
 
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+++ b/src/gcc/cse.c
 
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@@ -3194,9 +3194,14 @@ fold_rtx (rtx x, rtx insn)
 
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 #ifdef HAVE_cc0
 
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          case CC0:
 
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-           folded_arg = prev_insn_cc0;
 
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-           mode_arg = prev_insn_cc0_mode;
 
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-           const_arg = equiv_constant (folded_arg);
 
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+           if (!prev_insn_cc0)
 
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+             const_arg = 0;
 
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+           else
 
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+             {
 
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+               folded_arg = prev_insn_cc0;
 
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+               mode_arg = prev_insn_cc0_mode;
 
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+               const_arg = equiv_constant (folded_arg);
 
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+             }
 
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            break;
 
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 #endif
 
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