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d1c9218c89
See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54369 for more information This bug has a serious effect on Linux/MIPS and SPARC kernel builds. Add the fix for these versions of gcc: 4.6.0, 4.6.2, 4.6.3, and 4.7.0. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
46 lines
1.4 KiB
Diff
46 lines
1.4 KiB
Diff
Author: ebotcazou
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Date: Sun Sep 2 10:36:54 2012
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New Revision: 190859
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URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190859
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Log:
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PR rtl-optimization/54369
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* config/mips/mips.c (mips_reorg): Invoke cleanup_barriers before
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calling dbr_schedule.
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* config/sparc/sparc.c (sparc_reorg): Likewise.
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Modified:
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branches/gcc-4_7-branch/gcc/ChangeLog
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branches/gcc-4_7-branch/gcc/config/mips/mips.c
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branches/gcc-4_7-branch/gcc/config/sparc/sparc.c
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---
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--- gcc-4_7-branch/gcc/config/mips/mips.c 2012/09/02 10:36:27 190858
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+++ gcc-4_7-branch/gcc/config/mips/mips.c 2012/09/02 10:36:54 190859
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@@ -15415,7 +15415,10 @@
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}
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if (optimize > 0 && flag_delayed_branch)
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- dbr_schedule (get_insns ());
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+ {
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+ cleanup_barriers ();
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+ dbr_schedule (get_insns ());
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+ }
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mips_reorg_process_insns ();
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if (!TARGET_MIPS16
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&& TARGET_EXPLICIT_RELOCS
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--- gcc-4_7-branch/gcc/config/sparc/sparc.c 2012/09/02 10:36:27 190858
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+++ gcc-4_7-branch/gcc/config/sparc/sparc.c 2012/09/02 10:36:54 190859
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@@ -10663,7 +10663,10 @@
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/* We need to have the (essentially) final form of the insn stream in order
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to properly detect the various hazards. Run delay slot scheduling. */
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if (optimize > 0 && flag_delayed_branch)
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- dbr_schedule (get_insns ());
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+ {
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+ cleanup_barriers ();
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+ dbr_schedule (get_insns ());
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+ }
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/* Now look for specific patterns in the insn stream. */
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for (insn = get_insns (); insn; insn = next)
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