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diff -Naur gcc-4.6.2/gcc/config/rs6000/rs6000.c gcc-4.6.2-loop_invariant/gcc/config/rs6000/rs6000.c
--- gcc-4.6.2/gcc/config/rs6000/rs6000.c 2011-11-24 00:03:49.709144001 -0600
+++ gcc-4.6.2-loop_invariant/gcc/config/rs6000/rs6000.c 2011-12-12 23:49:27.901487730 -0600
@@ -2723,7 +2723,7 @@
calculation works better for RTL loop invariant motion on targets
with enough (>= 32) registers. It is an expensive optimization.
So it is on only for peak performance. */
- if (optimize >= 3 && global_init_p)
+ if (optimize >= 3 && global_init_p && !global_options_set.x_flag_ira_loop_pressure)
flag_ira_loop_pressure = 1;
/* Set the pointer size. */
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