obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 24 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/arm/mmx-1.c b/gcc/testsuite/gcc.target/arm/mmx-1.c
new file mode 100644
index 000000000..c2eca7f78
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/mmx-1.c
@@ -0,0 +1,24 @@
+/* Verify that if IP is saved to ensure stack alignment, we don't load
+   it into sp.  */
+/* { dg-do compile } */
+/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-mcpu=*" } { "-mcpu=iwmmxt" } } */
+/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-mabi=*" } { "-mabi=iwmmxt" } } */
+/* { dg-skip-if "Test is specific to the iWMMXt" { arm*-*-* } { "-march=*" } { "-march=iwmmxt" } } */
+/* { dg-options "-O -mno-apcs-frame -mcpu=iwmmxt -mabi=iwmmxt" } */
+/* { dg-require-effective-target arm32 } */
+/* { dg-require-effective-target arm_iwmmxt_ok } */
+/* { dg-final { scan-assembler "ldmfd\[ 	]sp!.*ip,\[ ]*pc" } } */
+
+/* This function uses all the call-saved registers, namely r4, r5, r6,
+   r7, r8, r9, sl, fp.  Since we also save lr, that leaves an odd
+   number of registers, and the compiler will push ip to align the
+   stack.  Make sure that we restore ip into ip, not into sp as is
+   done when using a frame pointer.  The -mno-apcs-frame option
+   permits the frame pointer to be used as an ordinary register.  */
+
+void
+foo(void)
+{
+  __asm volatile ("" : : :
+		  "r4", "r5", "r6", "r7", "r8", "r9", "sl", "fp", "lr");
+}