[llvm-commits] [gcc-plugin] r81772 - /gcc-plugin/trunk/llvm-backend.cpp
Duncan Sands
baldrick at free.fr
Mon Sep 14 10:19:46 PDT 2009
Author: baldrick
Date: Mon Sep 14 12:19:45 2009
New Revision: 81772
URL: http://llvm.org/viewvc/llvm-project?rev=81772&view=rev
Log:
Turn off a bunch more GCC optimizations (there are more we might want to turn off,
but this is most of them). In particular, by turning off function cloning this
works around GCC bug 41355, which was firing an assertion in EmitCallOf. With
these changes sqlite3 compiles at all optimization levels.
Modified:
gcc-plugin/trunk/llvm-backend.cpp
Modified: gcc-plugin/trunk/llvm-backend.cpp
URL: http://llvm.org/viewvc/llvm-project/gcc-plugin/trunk/llvm-backend.cpp?rev=81772&r1=81771&r2=81772&view=diff
==============================================================================
--- gcc-plugin/trunk/llvm-backend.cpp (original)
+++ gcc-plugin/trunk/llvm-backend.cpp Mon Sep 14 12:19:45 2009
@@ -1992,6 +1992,32 @@
}
};
+/// pass_ipa_null - IPA pass that does nothing.
+static struct ipa_opt_pass_d pass_ipa_null = {
+ {
+ IPA_PASS,
+ NULL, /* name */
+ gate_null, /* gate */
+ NULL, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ TV_NONE, /* tv_id */
+ 0, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0 /* todo_flags_finish */
+ },
+ NULL, /* generate_summary */
+ NULL, /* write_summary */
+ NULL, /* read_summary */
+ NULL, /* function_read_summary */
+ 0, /* TODOs */
+ NULL, /* function_transform */
+ NULL /* variable_transform */
+};
+
/// pass_rtl_null - RTL pass that does nothing.
static struct rtl_opt_pass pass_rtl_null =
{
@@ -2012,6 +2038,26 @@
}
};
+/// pass_simple_ipa_null - Simple IPA pass that does nothing.
+static struct simple_ipa_opt_pass pass_simple_ipa_null =
+{
+ {
+ SIMPLE_IPA_PASS,
+ NULL, /* name */
+ gate_null, /* gate */
+ NULL, /* execute */
+ NULL, /* sub */
+ NULL, /* next */
+ 0, /* static_pass_number */
+ TV_NONE, /* tv_id */
+ 0, /* properties_required */
+ 0, /* properties_provided */
+ 0, /* properties_destroyed */
+ 0, /* todo_flags_start */
+ 0 /* todo_flags_finish */
+ }
+};
+
// Garbage collector roots.
extern const struct ggc_cache_tab gt_ggc_rc__gt_llvm_cache_h[];
@@ -2114,6 +2160,85 @@
// TODO: figure out a good way of turning off ipa optimization passes.
// Could just set optimize to zero (after taking a copy), but this would
// also impact front-end optimizations.
+
+ // Turn off pass_ipa_early_inline.
+ pass_info.pass = &pass_simple_ipa_null.pass;
+ pass_info.reference_pass_name = "einline_ipa";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_all_early_optimizations.
+ pass_info.pass = &pass_gimple_null.pass;
+ pass_info.reference_pass_name = "early_optimizations";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_increase_alignment.
+ pass_info.pass = &pass_simple_ipa_null.pass;
+ pass_info.reference_pass_name = "increase_alignment";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_matrix_reorg.
+ pass_info.pass = &pass_simple_ipa_null.pass;
+ pass_info.reference_pass_name = "matrix-reorg";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_cp.
+ pass_info.pass = &pass_ipa_null.pass;
+ pass_info.reference_pass_name = "cp";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_inline.
+ pass_info.pass = &pass_ipa_null.pass;
+ pass_info.reference_pass_name = "inline";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_reference.
+ pass_info.pass = &pass_ipa_null.pass;
+ pass_info.reference_pass_name = "static-var";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_pure_const.
+ pass_info.pass = &pass_ipa_null.pass;
+ pass_info.reference_pass_name = "pure-const";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_type_escape.
+ pass_info.pass = &pass_simple_ipa_null.pass;
+ pass_info.reference_pass_name = "type-escape-var";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_pta.
+ pass_info.pass = &pass_simple_ipa_null.pass;
+ pass_info.reference_pass_name = "pta";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_ipa_struct_reorg.
+ pass_info.pass = &pass_simple_ipa_null.pass;
+ pass_info.reference_pass_name = "ipa_struct_reorg";
+ pass_info.ref_pass_instance_number = 0;
+ pass_info.pos_op = PASS_POS_REPLACE;
+ register_callback (plugin_name, PLUGIN_PASS_MANAGER_SETUP, NULL, &pass_info);
+
+ // Turn off pass_all_optimizations.
pass_info.pass = &pass_gimple_null.pass;
pass_info.reference_pass_name = "*all_optimizations";
pass_info.ref_pass_instance_number = 0;
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