gcc/
* postreload-gcse.c (record_last_set_info): Notice stack pointer
changes in push insns without REG_INC notes.
testsuite/
* gcc.dg/pr25130.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108906
138bc75d-0d04-0410-961f-
82ee72b054a4
+2005-12-21 Steven Bosscher <stevenb@suse.de>
+
+ PR rtl-optimization/25130
+ * postreload-gcse.c (record_last_set_info): Notice stack pointer
+ changes in push insns without REG_INC notes.
+
2005-12-21 Kazu Hirata <kazu@codesourcery.com>
PR tree-optimization/25382.
if (REG_P (dest))
record_last_reg_set_info (last_set_insn, REGNO (dest));
- else if (MEM_P (dest)
- /* Ignore pushes, they clobber nothing. */
- && ! push_operand (dest, GET_MODE (dest)))
- record_last_mem_set_info (last_set_insn);
+ else if (MEM_P (dest))
+ {
+ /* Ignore pushes, they don't clobber memory. They may still
+ clobber the stack pointer though. Some targets do argument
+ pushes without adding REG_INC notes. See e.g. PR25196,
+ where a pushsi2 on i386 doesn't have REG_INC notes. Note
+ such changes here too. */
+ if (! push_operand (dest, GET_MODE (dest)))
+ record_last_mem_set_info (last_set_insn);
+ else
+ record_last_reg_set_info (last_set_insn, STACK_POINTER_REGNUM);
+ }
}
+2005-12-21 Steven Bosscher <stevenb@suse.de>
+
+ PR rtl-optimization/25130
+ * gcc.dg/pr25130.c: New test.
+
2005-12-21 Erik Edelmann <eedelman@gcc.gnu.org>
PR fortran/25423
--- /dev/null
+/* { dg-do run { target i?86-*-* x86_64-*-* } } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-march=i386 -O3 -fomit-frame-pointer" } */
+
+/* For this test case, we used to do an invalid load motion after
+ reload, because we missed autoincrements of the stack pointer. */
+
+extern void abort (void);
+
+static int j;
+
+static void __attribute__((noinline))
+f1 (int a, int b, int c, int d, int e)
+{
+ j = a;
+}
+
+int __attribute__((noinline))
+f2 (int a, int b, int c, int d, int e)
+{
+ if ((b & 0x1111) != 1)
+ f1 (a, b, c, d, e);
+ return 0;
+}
+
+int
+main (void)
+{
+ f2 (123, 0, 0, 0, 0);
+ if (j != 123)
+ abort ();
+ return 0;
+}
+