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2011-08-26 Richard Sandiford <richard.sandiford@linaro.org>
gcc/
Backport from mainline:
2011-08-26 Richard Sandiford <richard.sandiford@linaro.org>
* df-problems.c (df_note_bb_compute): Pass uses rather than defs
to df_set_dead_notes_for_mw.
=== modified file 'gcc/df-problems.c'
--- old/gcc/df-problems.c 2011-05-05 14:28:53 +0000
+++ new/gcc/df-problems.c 2011-08-26 14:39:38 +0000
@@ -3562,7 +3562,7 @@
while (*mws_rec)
{
struct df_mw_hardreg *mws = *mws_rec;
- if ((DF_MWS_REG_DEF_P (mws))
+ if (DF_MWS_REG_USE_P (mws)
&& !df_ignore_stack_reg (mws->start_regno))
{
bool really_add_notes = debug_insn != 0;
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