mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-23 23:16:16 +02:00
[toolchain/gcc] remove screwed up patch for gcc 4.7-linaro which got committed by accident
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31393 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
mirko
parent
448e6c21cc
commit
632e1ee3ae
@ -1,247 +0,0 @@
|
||||
--- /dev/null
|
||||
+++ b/make/target/gcc/4.7.0/920-tree-ssa-tail-merge.patch
|
||||
@@ -0,0 +1,244 @@
|
||||
+This patch refers to:
|
||||
+
|
||||
+http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52734
|
||||
+http://gcc.gnu.org/bugzilla/attachment.cgi?id=27014&action=diff&context=patch&collapsed=&headers=1&format=raw
|
||||
+
|
||||
+--- gcc/tree-ssa-tail-merge.c
|
||||
++++ gcc/tree-ssa-tail-merge.c
|
||||
+@@ -1033,7 +1033,7 @@ set_cluster (basic_block bb1, basic_bloc
|
||||
+ gimple_bb (s2) are members of SAME_SUCC. */
|
||||
+
|
||||
+ static bool
|
||||
+-gimple_equal_p (same_succ same_succ, gimple s1, gimple s2)
|
||||
++gimple_equal_p (same_succ same_succ, gimple s1, gimple s2, bool *gvn_used)
|
||||
+ {
|
||||
+ unsigned int i;
|
||||
+ tree lhs1, lhs2;
|
||||
+@@ -1069,7 +1069,10 @@ gimple_equal_p (same_succ same_succ, gim
|
||||
+ if (operand_equal_p (t1, t2, 0))
|
||||
+ continue;
|
||||
+ if (gvn_uses_equal (t1, t2))
|
||||
+- continue;
|
||||
++ {
|
||||
++ *gvn_used = true;
|
||||
++ continue;
|
||||
++ }
|
||||
+ equal = false;
|
||||
+ break;
|
||||
+ }
|
||||
+@@ -1083,12 +1086,16 @@ gimple_equal_p (same_succ same_succ, gim
|
||||
+ if (lhs1 == NULL_TREE || lhs2 == NULL_TREE)
|
||||
+ return false;
|
||||
+ if (TREE_CODE (lhs1) == SSA_NAME && TREE_CODE (lhs2) == SSA_NAME)
|
||||
+- return vn_valueize (lhs1) == vn_valueize (lhs2);
|
||||
++ {
|
||||
++ *gvn_used = true;
|
||||
++ return vn_valueize (lhs1) == vn_valueize (lhs2);
|
||||
++ }
|
||||
+ return operand_equal_p (lhs1, lhs2, 0);
|
||||
+
|
||||
+ case GIMPLE_ASSIGN:
|
||||
+ lhs1 = gimple_get_lhs (s1);
|
||||
+ lhs2 = gimple_get_lhs (s2);
|
||||
++ *gvn_used = true;
|
||||
+ return (TREE_CODE (lhs1) == SSA_NAME
|
||||
+ && TREE_CODE (lhs2) == SSA_NAME
|
||||
+ && vn_valueize (lhs1) == vn_valueize (lhs2));
|
||||
+@@ -1096,15 +1103,23 @@ gimple_equal_p (same_succ same_succ, gim
|
||||
+ case GIMPLE_COND:
|
||||
+ t1 = gimple_cond_lhs (s1);
|
||||
+ t2 = gimple_cond_lhs (s2);
|
||||
+- if (!operand_equal_p (t1, t2, 0)
|
||||
+- && !gvn_uses_equal (t1, t2))
|
||||
+- return false;
|
||||
++ if (!operand_equal_p (t1, t2, 0))
|
||||
++ {
|
||||
++ if (gvn_uses_equal (t1, t2))
|
||||
++ *gvn_used = true;
|
||||
++ else
|
||||
++ return false;
|
||||
++ }
|
||||
+
|
||||
+ t1 = gimple_cond_rhs (s1);
|
||||
+ t2 = gimple_cond_rhs (s2);
|
||||
+- if (!operand_equal_p (t1, t2, 0)
|
||||
+- && !gvn_uses_equal (t1, t2))
|
||||
+- return false;
|
||||
++ if (!operand_equal_p (t1, t2, 0))
|
||||
++ {
|
||||
++ if (gvn_uses_equal (t1, t2))
|
||||
++ *gvn_used = true;
|
||||
++ else
|
||||
++ return false;
|
||||
++ }
|
||||
+
|
||||
+ code1 = gimple_expr_code (s1);
|
||||
+ code2 = gimple_expr_code (s2);
|
||||
+@@ -1126,18 +1141,25 @@ gimple_equal_p (same_succ same_succ, gim
|
||||
+ /* Let GSI skip backwards over local defs. */
|
||||
+
|
||||
+ static void
|
||||
+-gsi_advance_bw_nondebug_nonlocal (gimple_stmt_iterator *gsi)
|
||||
++gsi_advance_bw_nondebug_nonlocal (gimple_stmt_iterator *gsi, tree *vuse)
|
||||
+ {
|
||||
+ gimple stmt;
|
||||
++ tree lvuse;
|
||||
+
|
||||
+ while (true)
|
||||
+ {
|
||||
+ if (gsi_end_p (*gsi))
|
||||
+ return;
|
||||
+ stmt = gsi_stmt (*gsi);
|
||||
++
|
||||
++ lvuse = gimple_vuse (stmt);
|
||||
++ if (lvuse != NULL_TREE)
|
||||
++ *vuse = lvuse;
|
||||
++
|
||||
+ if (!(is_gimple_assign (stmt) && local_def (gimple_get_lhs (stmt))
|
||||
+ && !gimple_has_side_effects (stmt)))
|
||||
+ return;
|
||||
++
|
||||
+ gsi_prev_nondebug (gsi);
|
||||
+ }
|
||||
+ }
|
||||
+@@ -1146,28 +1168,34 @@ gsi_advance_bw_nondebug_nonlocal (gimple
|
||||
+ clusters them. */
|
||||
+
|
||||
+ static void
|
||||
+-find_duplicate (same_succ same_succ, basic_block bb1, basic_block bb2)
|
||||
++find_duplicate (same_succ same_succ, basic_block bb1, basic_block bb2,
|
||||
++ bool gvn_used)
|
||||
+ {
|
||||
+ gimple_stmt_iterator gsi1 = gsi_last_nondebug_bb (bb1);
|
||||
+ gimple_stmt_iterator gsi2 = gsi_last_nondebug_bb (bb2);
|
||||
++ tree vuse1 = NULL_TREE, vuse2 = NULL_TREE;
|
||||
+
|
||||
+- gsi_advance_bw_nondebug_nonlocal (&gsi1);
|
||||
+- gsi_advance_bw_nondebug_nonlocal (&gsi2);
|
||||
++ gsi_advance_bw_nondebug_nonlocal (&gsi1, &vuse1);
|
||||
++ gsi_advance_bw_nondebug_nonlocal (&gsi2, &vuse2);
|
||||
+
|
||||
+ while (!gsi_end_p (gsi1) && !gsi_end_p (gsi2))
|
||||
+ {
|
||||
+- if (!gimple_equal_p (same_succ, gsi_stmt (gsi1), gsi_stmt (gsi2)))
|
||||
++ if (!gimple_equal_p (same_succ, gsi_stmt (gsi1), gsi_stmt (gsi2),
|
||||
++ &gvn_used))
|
||||
+ return;
|
||||
+
|
||||
+ gsi_prev_nondebug (&gsi1);
|
||||
+ gsi_prev_nondebug (&gsi2);
|
||||
+- gsi_advance_bw_nondebug_nonlocal (&gsi1);
|
||||
+- gsi_advance_bw_nondebug_nonlocal (&gsi2);
|
||||
++ gsi_advance_bw_nondebug_nonlocal (&gsi1, &vuse1);
|
||||
++ gsi_advance_bw_nondebug_nonlocal (&gsi2, &vuse2);
|
||||
+ }
|
||||
+
|
||||
+ if (!(gsi_end_p (gsi1) && gsi_end_p (gsi2)))
|
||||
+ return;
|
||||
+
|
||||
++ if (gvn_used && vuse1 != vuse2)
|
||||
++ return;
|
||||
++
|
||||
+ if (dump_file)
|
||||
+ fprintf (dump_file, "find_duplicates: <bb %d> duplicate of <bb %d>\n",
|
||||
+ bb1->index, bb2->index);
|
||||
+@@ -1179,7 +1207,7 @@ find_duplicate (same_succ same_succ, bas
|
||||
+ E2 are equal. */
|
||||
+
|
||||
+ static bool
|
||||
+-same_phi_alternatives_1 (basic_block dest, edge e1, edge e2)
|
||||
++same_phi_alternatives_1 (basic_block dest, edge e1, edge e2, bool *gvn_used)
|
||||
+ {
|
||||
+ int n1 = e1->dest_idx, n2 = e2->dest_idx;
|
||||
+ gimple_stmt_iterator gsi;
|
||||
+@@ -1197,7 +1225,10 @@ same_phi_alternatives_1 (basic_block des
|
||||
+ if (operand_equal_for_phi_arg_p (val1, val2))
|
||||
+ continue;
|
||||
+ if (gvn_uses_equal (val1, val2))
|
||||
+- continue;
|
||||
++ {
|
||||
++ *gvn_used = true;
|
||||
++ continue;
|
||||
++ }
|
||||
+
|
||||
+ return false;
|
||||
+ }
|
||||
+@@ -1209,7 +1240,8 @@ same_phi_alternatives_1 (basic_block des
|
||||
+ phi alternatives for BB1 and BB2 are equal. */
|
||||
+
|
||||
+ static bool
|
||||
+-same_phi_alternatives (same_succ same_succ, basic_block bb1, basic_block bb2)
|
||||
++same_phi_alternatives (same_succ same_succ, basic_block bb1, basic_block bb2,
|
||||
++ bool *gvn_used)
|
||||
+ {
|
||||
+ unsigned int s;
|
||||
+ bitmap_iterator bs;
|
||||
+@@ -1227,7 +1259,7 @@ same_phi_alternatives (same_succ same_su
|
||||
+
|
||||
+ /* For all phis in bb, the phi alternatives for e1 and e2 need to have
|
||||
+ the same value. */
|
||||
+- if (!same_phi_alternatives_1 (succ, e1, e2))
|
||||
++ if (!same_phi_alternatives_1 (succ, e1, e2, gvn_used))
|
||||
+ return false;
|
||||
+ }
|
||||
+
|
||||
+@@ -1301,6 +1333,7 @@ find_clusters_1 (same_succ same_succ)
|
||||
+ bitmap_iterator bi, bj;
|
||||
+ int nr_comparisons;
|
||||
+ int max_comparisons = PARAM_VALUE (PARAM_MAX_TAIL_MERGE_COMPARISONS);
|
||||
++ bool gvn_used;
|
||||
+
|
||||
+ EXECUTE_IF_SET_IN_BITMAP (same_succ->bbs, 0, i, bi)
|
||||
+ {
|
||||
+@@ -1333,10 +1366,11 @@ find_clusters_1 (same_succ same_succ)
|
||||
+ if (!deps_ok_for_redirect (bb1, bb2))
|
||||
+ continue;
|
||||
+
|
||||
+- if (!(same_phi_alternatives (same_succ, bb1, bb2)))
|
||||
++ gvn_used = false;
|
||||
++ if (!(same_phi_alternatives (same_succ, bb1, bb2, &gvn_used)))
|
||||
+ continue;
|
||||
+
|
||||
+- find_duplicate (same_succ, bb1, bb2);
|
||||
++ find_duplicate (same_succ, bb1, bb2, gvn_used);
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+--- gcc/testsuite/gcc.dg/pr52734.c
|
||||
++++ gcc/testsuite/gcc.dg/pr52734.c
|
||||
+@@ -0,0 +1,35 @@
|
||||
++/* { dg-do run } */
|
||||
++/* { dg-options "-O2" } */
|
||||
++
|
||||
++int bbb = 0;
|
||||
++
|
||||
++int __attribute__((noinline,noclone)) aaa(void)
|
||||
++{
|
||||
++ ++bbb;
|
||||
++ return 0;
|
||||
++}
|
||||
++
|
||||
++int __attribute__((noinline,noclone)) ccc(void)
|
||||
++{
|
||||
++ int ddd;
|
||||
++ /* bbb == 0 */
|
||||
++ if (aaa())
|
||||
++ return bbb;
|
||||
++
|
||||
++ /* bbb == 1 */
|
||||
++ ddd = bbb;
|
||||
++ /* bbb == ddd == 1 */
|
||||
++ if (aaa ())
|
||||
++ return 0;
|
||||
++ /* bbb == 2, ddd == 1 */
|
||||
++
|
||||
++ return ddd;
|
||||
++}
|
||||
++
|
||||
++int main(void)
|
||||
++{
|
||||
++ if (ccc() != 1)
|
||||
++ __builtin_abort();
|
||||
++ return 0;
|
||||
++}
|
||||
++
|
||||
Loading…
Reference in New Issue
Block a user