PR debug/46252

	* reload1.c (delete_dead_insn): Use prev_active_insn instead of
	prev_real_insn.
	* gcse.c (insert_insn_end_basic_block): Likewise.

	* gcc.dg/pr46252.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166232 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 2ccafe1..275d476 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2010-11-03  Jakub Jelinek  <jakub@redhat.com>
 
+       PR debug/46252
+       * reload1.c (delete_dead_insn): Use prev_active_insn instead of
+       prev_real_insn.
+       * gcse.c (insert_insn_end_basic_block): Likewise.
+
        PR rtl-optimization/46034
        PR rtl-optimization/46212
        PR rtl-optimization/46248

diff --git a/gcc/gcse.c b/gcc/gcse.c
index 39a5d22..70f0fac 100644 (file)
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -3574,7 +3574,7 @@ insert_insn_end_basic_block (struct expr *expr, basic_block bb)
         the new instruction just before the tablejump.  */
       if (GET_CODE (PATTERN (insn)) == ADDR_VEC
          || GET_CODE (PATTERN (insn)) == ADDR_DIFF_VEC)
-       insn = prev_real_insn (insn);
+       insn = prev_active_insn (insn);
 
 #ifdef HAVE_cc0
       /* FIXME: 'twould be nice to call prev_cc0_setter here but it aborts

diff --git a/gcc/reload1.c b/gcc/reload1.c
index c8fd33a..7fd88c1 100644 (file)
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -2112,7 +2112,7 @@ spill_failure (rtx insn, enum reg_class rclass)
 static void
 delete_dead_insn (rtx insn)
 {
-  rtx prev = prev_real_insn (insn);
+  rtx prev = prev_active_insn (insn);
   rtx prev_dest;
 
   /* If the previous insn sets a register that dies in our insn, delete it

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 439dd5c..bb14d86 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2010-11-03  Jakub Jelinek  <jakub@redhat.com>
 
+       PR debug/46252
+       * gcc.dg/pr46252.c: New test.
+
        PR rtl-optimization/46034
        PR rtl-optimization/46212
        PR rtl-optimization/46248

diff --git a/gcc/testsuite/gcc.dg/pr46252.c b/gcc/testsuite/gcc.dg/pr46252.c
new file mode 100644 (file)
index 0000000..70bf21d
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr46252.c
@@ -0,0 +1,15 @@
+/* PR debug/46252 */
+/* { dg-do compile } */
+/* { dg-options "-O -frerun-cse-after-loop -fno-tree-loop-optimize -funroll-loops -fcompare-debug" } */
+
+void
+foo (float *f)
+{
+  int i;
+  for (i = 0; i < 4; i++)
+    f[i] = i;
+  bar ();
+  for (i = 0; i < 4; i++)
+    if (f[i] != i)
+      __builtin_abort ();
+}