PR middle-end/19084

	PR rtl-optimization/19348
	* recog.c (peephole2_optimize): Do global life update if some peephole
	decides it doesn't need at least one of its inputs and that change
	influences liveness at the start of the basic block.

	* basic-block.h (EXECUTE_IF_AND_COMPL_IN_REG_SET): Needs 2 REGSET
	arguments instead of 1.

	* gcc.dg/20050111-1.c: New test.
	* gcc.c-torture/execute/20050111-1.c: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@93639 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 39 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20050111-1.c b/gcc/testsuite/gcc.c-torture/execute/20050111-1.c
new file mode 100644
index 00000000000..d6089f1bd8d
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20050111-1.c
@@ -0,0 +1,39 @@
+/* PR middle-end/19084, rtl-optimization/19348 */
+
+unsigned int
+foo (unsigned long long x)
+{
+  unsigned int u;
+
+  if (x == 0)
+    return 0;
+  u = (unsigned int) (x >> 32);
+  return u;
+}
+
+unsigned long long
+bar (unsigned short x)
+{
+  return (unsigned long long) x << 32;
+}
+
+extern void abort (void);
+
+int
+main (void)
+{
+  if (sizeof (long long) != 8)
+    return 0;
+
+  if (foo (0) != 0)
+    abort ();
+  if (foo (0xffffffffULL) != 0)
+    abort ();
+  if (foo (0x25ff00ff00ULL) != 0x25)
+    abort ();
+  if (bar (0) != 0)
+    abort ();
+  if (bar (0x25) != 0x2500000000ULL)
+    abort ();
+  return 0;
+}