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Benchmarking on AArch64 shows this \nspeeds up floating point performance on SPEC - eg. CactusBSSN improves\nby ~16%. The gains are mostly due to less spilling, so enable this on AArch64\nby default.\n\nOK for commit?\n\n2017-11-02 Wilco Dijkstra \n\n\t* config/aarch64/aarch64.c (aarch64_override_options_internal):\n\tSet PARAM_SCHED_PRESSURE_ALGORITHM to SCHED_PRESSURE_MODEL.\n\n--","diff":"diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c\nindex 34456e96497ac7b6d2f9931187ff05619e1934a4..750b0bc29c0963742d5d7bb4ae4619d93bec3e4a 100644\n--- a/gcc/config/aarch64/aarch64.c\n+++ b/gcc/config/aarch64/aarch64.c\n@@ -9276,6 +9276,11 @@ aarch64_override_options_internal (struct gcc_options *opts)\n \t\t\t opts->x_param_values,\n \t\t\t global_options_set.x_param_values);\n \n+ /* Use the alternative scheduling-pressure algorithm by default. */\n+ maybe_set_param_value (PARAM_SCHED_PRESSURE_ALGORITHM, SCHED_PRESSURE_MODEL,\n+\t\t\t opts->x_param_values,\n+\t\t\t global_options_set.x_param_values);\n+\n /* Enable sw prefetching at specified optimization level for\n CPUS that have prefetch. Lower optimization level threshold by 1\n when profiling is enabled. */\n","prefixes":["AArch64"]}