2009-03-18 Basile Starynkevitch <basile@starynkevitch.net>

	MELT branch merged with trunk r144927



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@144928 138bc75d-0d04-0410-961f-82ee72b054a4

6 files changed, 55 insertions, 15 deletions

diff --git a/gcc/testsuite/gcc.dg/asm-b.c b/gcc/testsuite/gcc.dg/asm-b.c
index ec9683925c4..beb35f28d8a 100644
--- a/gcc/testsuite/gcc.dg/asm-b.c
+++ b/gcc/testsuite/gcc.dg/asm-b.c
@@ -24,8 +24,8 @@ bar (void)
 #if defined (__powerpc__) || defined (__PPC__) || defined (__ppc__) || defined (_POWER) || defined (__ppc64__)
   __asm __volatile ("sthbrx %1,0,%2" : "=m" (*z) : "r" (y), "r" (z));
 #elif defined __i386__ || defined __x86_64__
-  __asm __volatile ("movb %b1,1(%2); movb %h1,(%2)" : "=m" (*z) : "r" (y), "r"
-(z));
+  __asm __volatile ("movb %b1,1(%2)\n\tmovb %h1,(%2)"
+		    : "=m" (*z) : "Q" (y), "R" (z));
 #endif
   return (x & 1) == 0;
 }
diff --git a/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp b/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp
index fe42528d56f..e541f6ed3ad 100644
--- a/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp
+++ b/gcc/testsuite/gcc.dg/compat/struct-layout-1.exp
@@ -43,6 +43,7 @@ global compat_have_dfp
 # Load procedures from common libraries. 
 load_lib standard.exp
 load_lib gcc.exp
+load_lib target-libpath.exp
 
 # Load the language-dependent compabibility support procedures.
 load_lib c-compat.exp
@@ -90,20 +91,12 @@ set generator_src "$generator_src $srcdir/$subdir/generate-random.c"
 set generator_src "$generator_src $srcdir/$subdir/generate-random_r.c"
 set generator_cmd "-o $generator $skip_dfp $generator_src"
 
-# Temporarily unset GCC_EXEC_PREFIX from environment, as that might
-# confuse the $HOSTCC.
-set orig_gcc_exec_prefix_saved 0
-if [info exists env(GCC_EXEC_PREFIX)] {
-     set orig_gcc_exec_prefix "$env(GCC_EXEC_PREFIX)"
-     set orig_gcc_exec_prefix_saved 1
-     unsetenv GCC_EXEC_PREFIX
-}
+# Temporarily switch to the environment for the host compiler.
+restore_ld_library_path_env_vars
 set status [remote_exec build "$HOSTCC $HOSTCFLAGS $generator_cmd"]
 set status [lindex $status 0]
-if { $orig_gcc_exec_prefix_saved } {
-     set orig_gcc_exec_prefix_saved 0
-     setenv GCC_EXEC_PREFIX "$orig_gcc_exec_prefix"
-}
+set_ld_library_path_env_vars
+
 if { $status == 0 } then {
     file delete -force $tstobjdir
     file mkdir $tstobjdir
diff --git a/gcc/testsuite/gcc.dg/debug/pr39412.c b/gcc/testsuite/gcc.dg/debug/pr39412.c
new file mode 100644
index 00000000000..71b7b5e21a9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/debug/pr39412.c
@@ -0,0 +1,16 @@
+/* PR debug/39412 */
+/* { dg-do compile } */
+
+struct S { int i; };
+
+inline void
+bar (const void *x, unsigned long y)
+{
+  const union { struct S a[y]; } *u = x;
+}
+
+void
+foo (const void *x, unsigned long y)
+{
+  bar (x, y);
+}
diff --git a/gcc/testsuite/gcc.dg/pr11492.c b/gcc/testsuite/gcc.dg/pr11492.c
index 4a8b617617f..86630995344 100644
--- a/gcc/testsuite/gcc.dg/pr11492.c
+++ b/gcc/testsuite/gcc.dg/pr11492.c
@@ -5,7 +5,7 @@ int main( void )
 {
   unsigned int a;
   unsigned char b;
-  for ( a = 0, b = 2; a > b * 1000; a++ ) /* { dg-bogus "comparison between signed and unsigned integer" "" { xfail { ! int32plus } } } */
+  for ( a = 0, b = 2; a > b * 100; a++ ) /* { dg-bogus "comparison between signed and unsigned integer" "" } */
     { ; }
 
   return 0;
diff --git a/gcc/testsuite/gcc.dg/pr39443.c b/gcc/testsuite/gcc.dg/pr39443.c
new file mode 100644
index 00000000000..1baa63a9985
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr39443.c
@@ -0,0 +1,18 @@
+/* PR middle-end/39443 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler-not "memcmp" } } */
+
+typedef __SIZE_TYPE__ size_t;
+
+extern int memcmp (const void *s1, const void *s2, size_t n)
+  __attribute__ ((__nothrow__, __pure__));
+extern __typeof (memcmp) memcmp __asm__ ("memory_compare");
+
+int
+test (char *s, char *t, int cnt)
+{
+  if (__builtin_expect (cnt, 0))
+    return memcmp (s, t, cnt);
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.dg/pr39455.c b/gcc/testsuite/gcc.dg/pr39455.c
new file mode 100644
index 00000000000..8e8c67034f2
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr39455.c
@@ -0,0 +1,13 @@
+/* PR tree-optimization/39455 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -fprefetch-loop-arrays -w" } */
+
+void
+foo (char *x, unsigned long y, unsigned char *z)
+{
+  unsigned int c[256], *d;
+
+  for (d = c + 1; d < c + 256; ++d)
+    *d += d[-1];
+  x[--c[z[y]]] = 0;
+}