+2016-02-28 Eric Botcazou <ebotcazou@adacore.com>
+
+ * config/i386/cygming.h (STACK_REALIGN_DEFAULT): Define.
+
2016-02-27 Jeff Law <law@redhat.com>
Revert
#undef MAX_STACK_ALIGNMENT
#define MAX_STACK_ALIGNMENT (TARGET_SEH ? 128 : MAX_OFILE_ALIGNMENT)
+/* 32-bit Windows aligns the stack on a 4-byte boundary but SSE instructions
+ may require 16-byte alignment. */
+#undef STACK_REALIGN_DEFAULT
+#define STACK_REALIGN_DEFAULT TARGET_SSE
+
/* Support hooks for SEH. */
#undef TARGET_ASM_UNWIND_EMIT
#define TARGET_ASM_UNWIND_EMIT i386_pe_seh_unwind_emit
+2016-02-28 Eric Botcazou <ebotcazou@adacore.com>
+
+ * gcc.target/i386/stack-realign-win.c: New test.
+
2016-02-28 Harald Anlauf <anlauf@gmx.de>
PR fortran/60126
--- /dev/null
+/* { dg-do compile { target *-*-mingw* *-*-cygwin* } } */
+/* { dg-require-effective-target ia32 } */
+/* { dg-options "-msse -O" } */
+
+extern void abort (void);
+
+typedef float __m128 __attribute__ ((__vector_size__ (16), __may_alias__));
+
+static __m128
+load_m128 (float *e)
+{
+ return * (__m128 *) e;
+}
+
+typedef union
+{
+ __m128 x;
+ float a[4];
+} union128;
+
+void test (void)
+{
+ union128 u;
+ float e[4] __attribute__ ((aligned (16)))
+ = {2134.3343, 1234.635654, 1.2234, 876.8976};
+ int i;
+
+ u.x = load_m128 (e);
+
+ for (i = 0; i < 4; i++)
+ if (u.a[i] != e[i])
+ abort ();
+}
+
+/* { dg-final { scan-assembler "andl\\t\\$-16, %esp" } } */