automatic import of compat-libgfortran-48openeuler24.03_LTSopeneuler23.09

1 files changed, 654 insertions, 0 deletions

diff --git a/gcc48-pr56564.patch b/gcc48-pr56564.patch
new file mode 100644
index 0000000..d81e02d
--- /dev/null
+++ b/gcc48-pr56564.patch
@@ -0,0 +1,654 @@
+2013-06-19  Igor Zamyatin  <igor.zamyatin@intel.com>
+
+	* gcc.dg/tree-ssa/loop-19.c: Add -fno-common.
+
+2013-06-12  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/56564
+	* varasm.c (decl_binds_to_current_def_p): Call binds_local_p
+	target hook even for !TREE_PUBLIC decls.  If no resolution info
+	is available, return false for common and external decls.
+
+	* gcc.target/i386/pr56564-1.c: Skip on darwin, mingw and cygwin.
+	* gcc.target/i386/pr56564-3.c: Likewise.
+
+2013-06-11  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/56564
+	* varasm.c (get_variable_align): Move #endif to the right place.
+
+2013-06-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/56564
+	* varasm.c (align_variable): Don't use DATA_ALIGNMENT or
+	CONSTANT_ALIGNMENT if !decl_binds_to_current_def_p (decl).
+	Use DATA_ABI_ALIGNMENT for that case instead if defined.
+	(get_variable_align): New function.
+	(get_variable_section, emit_bss, emit_common,
+	assemble_variable_contents, place_block_symbol): Use
+	get_variable_align instead of DECL_ALIGN.
+	(assemble_noswitch_variable): Add align argument, use it
+	instead of DECL_ALIGN.
+	(assemble_variable): Adjust caller.  Use get_variable_align
+	instead of DECL_ALIGN.
+	* config/i386/i386.h (DATA_ALIGNMENT): Adjust x86_data_alignment
+	caller.
+	(DATA_ABI_ALIGNMENT): Define.
+	* config/i386/i386-protos.h (x86_data_alignment): Adjust prototype.
+	* config/i386/i386.c (x86_data_alignment): Add opt argument.  If
+	opt is false, only return the psABI mandated alignment increase.
+	* config/c6x/c6x.h (DATA_ALIGNMENT): Renamed to...
+	(DATA_ABI_ALIGNMENT): ... this.
+	* config/mmix/mmix.h (DATA_ALIGNMENT): Renamed to...
+	(DATA_ABI_ALIGNMENT): ... this.
+	* config/mmix/mmix.c (mmix_data_alignment): Adjust function comment.
+	* config/s390/s390.h (DATA_ALIGNMENT): Renamed to...
+	(DATA_ABI_ALIGNMENT): ... this.
+	* doc/tm.texi.in (DATA_ABI_ALIGNMENT): Document.
+	* doc/tm.texi: Regenerated.
+
+	* gcc.target/i386/pr56564-1.c: New test.
+	* gcc.target/i386/pr56564-2.c: New test.
+	* gcc.target/i386/pr56564-3.c: New test.
+	* gcc.target/i386/pr56564-4.c: New test.
+	* gcc.target/i386/avx256-unaligned-load-4.c: Add -fno-common.
+	* gcc.target/i386/avx256-unaligned-store-1.c: Likewise.
+	* gcc.target/i386/avx256-unaligned-store-3.c: Likewise.
+	* gcc.target/i386/avx256-unaligned-store-4.c: Likewise.
+	* gcc.target/i386/vect-sizes-1.c: Likewise.
+	* gcc.target/i386/memcpy-1.c: Likewise.
+	* gcc.dg/vect/costmodel/i386/costmodel-vect-31.c (tmp): Initialize.
+	* gcc.dg/vect/costmodel/x86_64/costmodel-vect-31.c (tmp): Likewise.
+
+--- gcc/doc/tm.texi.in	(revision 199897)
++++ gcc/doc/tm.texi.in	(revision 199898)
+@@ -1062,6 +1062,15 @@ arrays to be word-aligned so that @code{
+ constants to character arrays can be done inline.
+ @end defmac
+ 
++@defmac DATA_ABI_ALIGNMENT (@var{type}, @var{basic-align})
++Similar to @code{DATA_ALIGNMENT}, but for the cases where the ABI mandates
++some alignment increase, instead of optimization only purposes.  E.g.@
++AMD x86-64 psABI says that variables with array type larger than 15 bytes
++must be aligned to 16 byte boundaries.
++
++If this macro is not defined, then @var{basic-align} is used.
++@end defmac
++
+ @defmac CONSTANT_ALIGNMENT (@var{constant}, @var{basic-align})
+ If defined, a C expression to compute the alignment given to a constant
+ that is being placed in memory.  @var{constant} is the constant and
+--- gcc/doc/tm.texi	(revision 199897)
++++ gcc/doc/tm.texi	(revision 199898)
+@@ -1078,6 +1078,15 @@ arrays to be word-aligned so that @code{
+ constants to character arrays can be done inline.
+ @end defmac
+ 
++@defmac DATA_ABI_ALIGNMENT (@var{type}, @var{basic-align})
++Similar to @code{DATA_ALIGNMENT}, but for the cases where the ABI mandates
++some alignment increase, instead of optimization only purposes.  E.g.@
++AMD x86-64 psABI says that variables with array type larger than 15 bytes
++must be aligned to 16 byte boundaries.
++
++If this macro is not defined, then @var{basic-align} is used.
++@end defmac
++
+ @defmac CONSTANT_ALIGNMENT (@var{constant}, @var{basic-align})
+ If defined, a C expression to compute the alignment given to a constant
+ that is being placed in memory.  @var{constant} is the constant and
+--- gcc/varasm.c	(revision 199897)
++++ gcc/varasm.c	(revision 199984)
+@@ -966,13 +966,80 @@ align_variable (tree decl, bool dont_out
+       align = MAX_OFILE_ALIGNMENT;
+     }
+ 
+-  /* On some machines, it is good to increase alignment sometimes.  */
+   if (! DECL_USER_ALIGN (decl))
+     {
++#ifdef DATA_ABI_ALIGNMENT
++      unsigned int data_abi_align
++	= DATA_ABI_ALIGNMENT (TREE_TYPE (decl), align);
++      /* For backwards compatibility, don't assume the ABI alignment for
++	 TLS variables.  */
++      if (! DECL_THREAD_LOCAL_P (decl) || data_abi_align <= BITS_PER_WORD)
++	align = data_abi_align;
++#endif
++
++      /* On some machines, it is good to increase alignment sometimes.
++	 But as DECL_ALIGN is used both for actually emitting the variable
++	 and for code accessing the variable as guaranteed alignment, we
++	 can only increase the alignment if it is a performance optimization
++	 if the references to it must bind to the current definition.  */
++      if (decl_binds_to_current_def_p (decl))
++	{
++#ifdef DATA_ALIGNMENT
++	  unsigned int data_align = DATA_ALIGNMENT (TREE_TYPE (decl), align);
++	  /* Don't increase alignment too much for TLS variables - TLS space
++	     is too precious.  */
++	  if (! DECL_THREAD_LOCAL_P (decl) || data_align <= BITS_PER_WORD)
++	    align = data_align;
++#endif
++#ifdef CONSTANT_ALIGNMENT
++	  if (DECL_INITIAL (decl) != 0
++	      && DECL_INITIAL (decl) != error_mark_node)
++	    {
++	      unsigned int const_align
++		= CONSTANT_ALIGNMENT (DECL_INITIAL (decl), align);
++	      /* Don't increase alignment too much for TLS variables - TLS
++		 space is too precious.  */
++	      if (! DECL_THREAD_LOCAL_P (decl) || const_align <= BITS_PER_WORD)
++		align = const_align;
++	    }
++#endif
++	}
++    }
++
++  /* Reset the alignment in case we have made it tighter, so we can benefit
++     from it in get_pointer_alignment.  */
++  DECL_ALIGN (decl) = align;
++}
++
++/* Return DECL_ALIGN (decl), possibly increased for optimization purposes
++   beyond what align_variable returned.  */
++
++static unsigned int
++get_variable_align (tree decl)
++{
++  unsigned int align = DECL_ALIGN (decl);
++
++  /* For user aligned vars or static vars align_variable already did
++     everything.  */
++  if (DECL_USER_ALIGN (decl) || !TREE_PUBLIC (decl))
++    return align;
++
++#ifdef DATA_ABI_ALIGNMENT
++  if (DECL_THREAD_LOCAL_P (decl))
++    align = DATA_ABI_ALIGNMENT (TREE_TYPE (decl), align);
++#endif
++
++  /* For decls that bind to the current definition, align_variable
++     did also everything, except for not assuming ABI required alignment
++     of TLS variables.  For other vars, increase the alignment here
++     as an optimization.  */
++  if (!decl_binds_to_current_def_p (decl))
++    {
++      /* On some machines, it is good to increase alignment sometimes.  */
+ #ifdef DATA_ALIGNMENT
+       unsigned int data_align = DATA_ALIGNMENT (TREE_TYPE (decl), align);
+       /* Don't increase alignment too much for TLS variables - TLS space
+-	 is too precious.  */
++         is too precious.  */
+       if (! DECL_THREAD_LOCAL_P (decl) || data_align <= BITS_PER_WORD)
+ 	align = data_align;
+ #endif
+@@ -989,9 +1056,7 @@ align_variable (tree decl, bool dont_out
+ #endif
+     }
+ 
+-  /* Reset the alignment in case we have made it tighter, so we can benefit
+-     from it in get_pointer_alignment.  */
+-  DECL_ALIGN (decl) = align;
++  return align;
+ }
+ 
+ /* Return the section into which the given VAR_DECL or CONST_DECL
+@@ -1043,7 +1108,8 @@ get_variable_section (tree decl, bool pr
+ 	return bss_noswitch_section;
+     }
+ 
+-  return targetm.asm_out.select_section (decl, reloc, DECL_ALIGN (decl));
++  return targetm.asm_out.select_section (decl, reloc,
++					 get_variable_align (decl));
+ }
+ 
+ /* Return the block into which object_block DECL should be placed.  */
+@@ -1780,7 +1846,8 @@ emit_bss (tree decl ATTRIBUTE_UNUSED,
+ 	  unsigned HOST_WIDE_INT rounded ATTRIBUTE_UNUSED)
+ {
+ #if defined ASM_OUTPUT_ALIGNED_BSS
+-  ASM_OUTPUT_ALIGNED_BSS (asm_out_file, decl, name, size, DECL_ALIGN (decl));
++  ASM_OUTPUT_ALIGNED_BSS (asm_out_file, decl, name, size,
++			  get_variable_align (decl));
+   return true;
+ #endif
+ }
+@@ -1796,10 +1863,11 @@ emit_common (tree decl ATTRIBUTE_UNUSED,
+ {
+ #if defined ASM_OUTPUT_ALIGNED_DECL_COMMON
+   ASM_OUTPUT_ALIGNED_DECL_COMMON (asm_out_file, decl, name,
+-				  size, DECL_ALIGN (decl));
++				  size, get_variable_align (decl));
+   return true;
+ #elif defined ASM_OUTPUT_ALIGNED_COMMON
+-  ASM_OUTPUT_ALIGNED_COMMON (asm_out_file, name, size, DECL_ALIGN (decl));
++  ASM_OUTPUT_ALIGNED_COMMON (asm_out_file, name, size,
++			     get_variable_align (decl));
+   return true;
+ #else
+   ASM_OUTPUT_COMMON (asm_out_file, name, size, rounded);
+@@ -1828,7 +1896,8 @@ emit_tls_common (tree decl ATTRIBUTE_UNU
+    NAME is the name of DECL's SYMBOL_REF.  */
+ 
+ static void
+-assemble_noswitch_variable (tree decl, const char *name, section *sect)
++assemble_noswitch_variable (tree decl, const char *name, section *sect,
++			    unsigned int align)
+ {
+   unsigned HOST_WIDE_INT size, rounded;
+ 
+@@ -1850,7 +1919,7 @@ assemble_noswitch_variable (tree decl, c
+ 	     * (BIGGEST_ALIGNMENT / BITS_PER_UNIT));
+ 
+   if (!sect->noswitch.callback (decl, name, size, rounded)
+-      && (unsigned HOST_WIDE_INT) DECL_ALIGN_UNIT (decl) > rounded)
++      && (unsigned HOST_WIDE_INT) (align / BITS_PER_UNIT) > rounded)
+     warning (0, "requested alignment for %q+D is greater than "
+ 	     "implemented alignment of %wu", decl, rounded);
+ }
+@@ -1880,7 +1949,7 @@ assemble_variable_contents (tree decl, c
+ 	/* Output the actual data.  */
+ 	output_constant (DECL_INITIAL (decl),
+ 			 tree_low_cst (DECL_SIZE_UNIT (decl), 1),
+-			 DECL_ALIGN (decl));
++			 get_variable_align (decl));
+       else
+ 	/* Leave space for it.  */
+ 	assemble_zeros (tree_low_cst (DECL_SIZE_UNIT (decl), 1));
+@@ -1904,6 +1973,7 @@ assemble_variable (tree decl, int top_le
+   const char *name;
+   rtx decl_rtl, symbol;
+   section *sect;
++  unsigned int align;
+   bool asan_protected = false;
+ 
+   /* This function is supposed to handle VARIABLES.  Ensure we have one.  */
+@@ -2003,6 +2073,8 @@ assemble_variable (tree decl, int top_le
+ 
+   set_mem_align (decl_rtl, DECL_ALIGN (decl));
+ 
++  align = get_variable_align (decl);
++
+   if (TREE_PUBLIC (decl))
+     maybe_assemble_visibility (decl);
+ 
+@@ -2032,12 +2104,12 @@ assemble_variable (tree decl, int top_le
+       place_block_symbol (symbol);
+     }
+   else if (SECTION_STYLE (sect) == SECTION_NOSWITCH)
+-    assemble_noswitch_variable (decl, name, sect);
++    assemble_noswitch_variable (decl, name, sect, align);
+   else
+     {
+       switch_to_section (sect);
+-      if (DECL_ALIGN (decl) > BITS_PER_UNIT)
+-	ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (DECL_ALIGN_UNIT (decl)));
++      if (align > BITS_PER_UNIT)
++	ASM_OUTPUT_ALIGN (asm_out_file, floor_log2 (align / BITS_PER_UNIT));
+       assemble_variable_contents (decl, name, dont_output_data);
+       if (asan_protected)
+ 	{
+@@ -6709,10 +6781,10 @@ bool
+ decl_binds_to_current_def_p (tree decl)
+ {
+   gcc_assert (DECL_P (decl));
+-  if (!TREE_PUBLIC (decl))
+-    return true;
+   if (!targetm.binds_local_p (decl))
+     return false;
++  if (!TREE_PUBLIC (decl))
++    return true;
+   /* When resolution is available, just use it.  */
+   if (TREE_CODE (decl) == VAR_DECL
+       && (TREE_STATIC (decl) || DECL_EXTERNAL (decl)))
+@@ -6730,10 +6802,20 @@ decl_binds_to_current_def_p (tree decl)
+ 	return resolution_to_local_definition_p (node->symbol.resolution);
+     }
+   /* Otherwise we have to assume the worst for DECL_WEAK (hidden weaks
+-     binds locally but still can be overwritten).
++     binds locally but still can be overwritten), DECL_COMMON (can be merged
++     with a non-common definition somewhere in the same module) or
++     DECL_EXTERNAL.
+      This rely on fact that binds_local_p behave as decl_replaceable_p
+      for all other declaration types.  */
+-  return !DECL_WEAK (decl);
++  if (DECL_WEAK (decl))
++    return false;
++  if (DECL_COMMON (decl)
++      && (DECL_INITIAL (decl) == NULL
++	  || DECL_INITIAL (decl) == error_mark_node))
++    return false;
++  if (DECL_EXTERNAL (decl))
++    return false;
++  return true;
+ }
+ 
+ /* A replaceable function or variable is one which may be replaced
+@@ -6959,7 +7041,7 @@ place_block_symbol (rtx symbol)
+   else
+     {
+       decl = SYMBOL_REF_DECL (symbol);
+-      alignment = DECL_ALIGN (decl);
++      alignment = get_variable_align (decl);
+       size = tree_low_cst (DECL_SIZE_UNIT (decl), 1);
+       if (flag_asan && asan_protect_global (decl))
+ 	{
+--- gcc/config/s390/s390.h	(revision 199897)
++++ gcc/config/s390/s390.h	(revision 199898)
+@@ -221,7 +221,7 @@ enum processor_flags
+ 
+ /* Alignment on even addresses for LARL instruction.  */
+ #define CONSTANT_ALIGNMENT(EXP, ALIGN) (ALIGN) < 16 ? 16 : (ALIGN)
+-#define DATA_ALIGNMENT(TYPE, ALIGN) (ALIGN) < 16 ? 16 : (ALIGN)
++#define DATA_ABI_ALIGNMENT(TYPE, ALIGN) (ALIGN) < 16 ? 16 : (ALIGN)
+ 
+ /* Alignment is not required by the hardware.  */
+ #define STRICT_ALIGNMENT 0
+--- gcc/config/i386/i386.h	(revision 199897)
++++ gcc/config/i386/i386.h	(revision 199898)
+@@ -859,7 +859,18 @@ enum target_cpu_default
+    cause character arrays to be word-aligned so that `strcpy' calls
+    that copy constants to character arrays can be done inline.  */
+ 
+-#define DATA_ALIGNMENT(TYPE, ALIGN) ix86_data_alignment ((TYPE), (ALIGN))
++#define DATA_ALIGNMENT(TYPE, ALIGN) \
++  ix86_data_alignment ((TYPE), (ALIGN), true)
++
++/* Similar to DATA_ALIGNMENT, but for the cases where the ABI mandates
++   some alignment increase, instead of optimization only purposes.  E.g.
++   AMD x86-64 psABI says that variables with array type larger than 15 bytes
++   must be aligned to 16 byte boundaries.
++
++   If this macro is not defined, then ALIGN is used.  */
++
++#define DATA_ABI_ALIGNMENT(TYPE, ALIGN) \
++  ix86_data_alignment ((TYPE), (ALIGN), false)
+ 
+ /* If defined, a C expression to compute the alignment for a local
+    variable.  TYPE is the data type, and ALIGN is the alignment that
+--- gcc/config/i386/i386-protos.h	(revision 199897)
++++ gcc/config/i386/i386-protos.h	(revision 199898)
+@@ -207,7 +207,7 @@ extern void init_cumulative_args (CUMULA
+ #endif	/* RTX_CODE  */
+ 
+ #ifdef TREE_CODE
+-extern int ix86_data_alignment (tree, int);
++extern int ix86_data_alignment (tree, int, bool);
+ extern unsigned int ix86_local_alignment (tree, enum machine_mode,
+ 					  unsigned int);
+ extern unsigned int ix86_minimum_alignment (tree, enum machine_mode,
+--- gcc/config/i386/i386.c	(revision 199897)
++++ gcc/config/i386/i386.c	(revision 199898)
+@@ -25292,12 +25292,13 @@ ix86_constant_alignment (tree exp, int a
+    instead of that alignment to align the object.  */
+ 
+ int
+-ix86_data_alignment (tree type, int align)
++ix86_data_alignment (tree type, int align, bool opt)
+ {
+   int max_align
+     = optimize_size ? BITS_PER_WORD : MIN (256, MAX_OFILE_ALIGNMENT);
+ 
+-  if (AGGREGATE_TYPE_P (type)
++  if (opt
++      && AGGREGATE_TYPE_P (type)
+       && TYPE_SIZE (type)
+       && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST
+       && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= (unsigned) max_align
+@@ -25309,14 +25310,17 @@ ix86_data_alignment (tree type, int alig
+      to 16byte boundary.  */
+   if (TARGET_64BIT)
+     {
+-      if (AGGREGATE_TYPE_P (type)
+-	   && TYPE_SIZE (type)
+-	   && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST
+-	   && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 128
+-	       || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 128)
++      if ((opt ? AGGREGATE_TYPE_P (type) : TREE_CODE (type) == ARRAY_TYPE)
++	  && TYPE_SIZE (type)
++	  && TREE_CODE (TYPE_SIZE (type)) == INTEGER_CST
++	  && (TREE_INT_CST_LOW (TYPE_SIZE (type)) >= 128
++	      || TREE_INT_CST_HIGH (TYPE_SIZE (type))) && align < 128)
+ 	return 128;
+     }
+ 
++  if (!opt)
++    return align;
++
+   if (TREE_CODE (type) == ARRAY_TYPE)
+     {
+       if (TYPE_MODE (TREE_TYPE (type)) == DFmode && align < 64)
+--- gcc/config/c6x/c6x.h	(revision 199897)
++++ gcc/config/c6x/c6x.h	(revision 199898)
+@@ -134,7 +134,7 @@ extern c6x_cpu_t c6x_arch;
+    Really only externally visible arrays must be aligned this way, as
+    only those are directly visible from another compilation unit.  But
+    we don't have that information available here.  */
+-#define DATA_ALIGNMENT(TYPE, ALIGN)					\
++#define DATA_ABI_ALIGNMENT(TYPE, ALIGN)					\
+   (((ALIGN) < BITS_PER_UNIT * 8 && TREE_CODE (TYPE) == ARRAY_TYPE)	\
+    ? BITS_PER_UNIT * 8 : (ALIGN))
+ 
+--- gcc/config/mmix/mmix.h	(revision 199897)
++++ gcc/config/mmix/mmix.h	(revision 199898)
+@@ -164,7 +164,7 @@ struct GTY(()) machine_function
+ /* Copied from elfos.h.  */
+ #define MAX_OFILE_ALIGNMENT (32768 * 8)
+ 
+-#define DATA_ALIGNMENT(TYPE, BASIC_ALIGN) \
++#define DATA_ABI_ALIGNMENT(TYPE, BASIC_ALIGN) \
+  mmix_data_alignment (TYPE, BASIC_ALIGN)
+ 
+ #define CONSTANT_ALIGNMENT(CONSTANT, BASIC_ALIGN) \
+--- gcc/config/mmix/mmix.c	(revision 199897)
++++ gcc/config/mmix/mmix.c	(revision 199898)
+@@ -313,7 +313,7 @@ mmix_init_machine_status (void)
+   return ggc_alloc_cleared_machine_function ();
+ }
+ 
+-/* DATA_ALIGNMENT.
++/* DATA_ABI_ALIGNMENT.
+    We have trouble getting the address of stuff that is located at other
+    than 32-bit alignments (GETA requirements), so try to give everything
+    at least 32-bit alignment.  */
+--- gcc/testsuite/gcc.target/i386/memcpy-1.c	(revision 199897)
++++ gcc/testsuite/gcc.target/i386/memcpy-1.c	(revision 199898)
+@@ -1,6 +1,6 @@
+ /* { dg-do compile } */
+ /* { dg-require-effective-target ia32 } */
+-/* { dg-options "-O2 -march=pentiumpro -minline-all-stringops" } */
++/* { dg-options "-O2 -march=pentiumpro -minline-all-stringops -fno-common" } */
+ /* { dg-final { scan-assembler "rep" } } */
+ /* { dg-final { scan-assembler "movs" } } */
+ /* { dg-final { scan-assembler-not "test" } } */
+--- gcc/testsuite/gcc.target/i386/vect-sizes-1.c	(revision 199897)
++++ gcc/testsuite/gcc.target/i386/vect-sizes-1.c	(revision 199898)
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O3 -ffast-math -mavx -mtune=generic" } */
++/* { dg-options "-O3 -ffast-math -mavx -mtune=generic -fno-common" } */
+ 
+ double a[1024];
+ 
+--- gcc/testsuite/gcc.target/i386/avx256-unaligned-load-4.c	(revision 199897)
++++ gcc/testsuite/gcc.target/i386/avx256-unaligned-load-4.c	(revision 199898)
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O3 -dp -mavx -mno-avx256-split-unaligned-load -mno-avx256-split-unaligned-store" } */
++/* { dg-options "-O3 -dp -mavx -mno-avx256-split-unaligned-load -mno-avx256-split-unaligned-store -fno-common" } */
+ 
+ #define N 1024
+ 
+--- gcc/testsuite/gcc.target/i386/avx256-unaligned-store-1.c	(revision 199897)
++++ gcc/testsuite/gcc.target/i386/avx256-unaligned-store-1.c	(revision 199898)
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O3 -dp -mavx -mavx256-split-unaligned-store" } */
++/* { dg-options "-O3 -dp -mavx -mavx256-split-unaligned-store -fno-common" } */
+ 
+ #define N 1024
+ 
+--- gcc/testsuite/gcc.target/i386/avx256-unaligned-store-3.c	(revision 199897)
++++ gcc/testsuite/gcc.target/i386/avx256-unaligned-store-3.c	(revision 199898)
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O3 -dp -mavx -mavx256-split-unaligned-store -mtune=generic" } */
++/* { dg-options "-O3 -dp -mavx -mavx256-split-unaligned-store -mtune=generic -fno-common" } */
+ 
+ #define N 1024
+ 
+--- gcc/testsuite/gcc.target/i386/avx256-unaligned-store-4.c	(revision 199897)
++++ gcc/testsuite/gcc.target/i386/avx256-unaligned-store-4.c	(revision 199898)
+@@ -1,5 +1,5 @@
+ /* { dg-do compile } */
+-/* { dg-options "-O3 -dp -mavx -mno-avx256-split-unaligned-load -mno-avx256-split-unaligned-store" } */
++/* { dg-options "-O3 -dp -mavx -mno-avx256-split-unaligned-load -mno-avx256-split-unaligned-store -fno-common" } */
+ 
+ #define N 1024
+ 
+--- gcc/testsuite/gcc.target/i386/pr56564-1.c	(revision 0)
++++ gcc/testsuite/gcc.target/i386/pr56564-1.c	(revision 199985)
+@@ -0,0 +1,26 @@
++/* PR target/56564 */
++/* { dg-do compile { target { fpic && lp64 } } } */
++/* { dg-skip-if "No symbol interposition for PIC" { *-*-mingw* *-*-cygwin* *-*-darwin* } } */
++/* { dg-options "-O3 -fpic -fdump-tree-optimized" } */
++
++struct S { long a, b; } s = { 5, 6 };
++char t[16] = { 7 };
++
++int
++foo (void)
++{
++  return ((__UINTPTR_TYPE__) &s) & 15;
++}
++
++int
++bar (void)
++{
++  return ((__UINTPTR_TYPE__) &t[0]) & 15;
++}
++
++/* { dg-final { scan-tree-dump-times "&s" 1 "optimized" } } */
++/* { dg-final { scan-tree-dump-times "&t" 0 "optimized" } } */
++/* { dg-final { scan-tree-dump-times "return 0" 1 "optimized" } } */
++/* { dg-final { scan-assembler ".align\[ \t]*16\[^:]*\[\n\r]s:" { target { *-*-linux* } } } } */
++/* { dg-final { scan-assembler ".align\[ \t]*16\[^:]*\[\n\r]t:" { target { *-*-linux* } } } } */
++/* { dg-final { cleanup-tree-dump "optimized" } } */
+--- gcc/testsuite/gcc.target/i386/pr56564-2.c	(revision 0)
++++ gcc/testsuite/gcc.target/i386/pr56564-2.c	(revision 199898)
+@@ -0,0 +1,25 @@
++/* PR target/56564 */
++/* { dg-do compile { target { *-*-linux* && lp64 } } } */
++/* { dg-options "-O3 -fno-pic -fdump-tree-optimized" } */
++
++struct S { long a, b; } s = { 5, 6 };
++char t[16] = { 7 };
++
++int
++foo (void)
++{
++  return ((__UINTPTR_TYPE__) &s) & 15;
++}
++
++int
++bar (void)
++{
++  return ((__UINTPTR_TYPE__) &t[0]) & 15;
++}
++
++/* { dg-final { scan-tree-dump-times "&s" 0 "optimized" } } */
++/* { dg-final { scan-tree-dump-times "&t" 0 "optimized" } } */
++/* { dg-final { scan-tree-dump-times "return 0" 2 "optimized" } } */
++/* { dg-final { scan-assembler ".align\[ \t]*16\[^:]*\[\n\r]s:" { target { *-*-linux* } } } } */
++/* { dg-final { scan-assembler ".align\[ \t]*16\[^:]*\[\n\r]t:" { target { *-*-linux* } } } } */
++/* { dg-final { cleanup-tree-dump "optimized" } } */
+--- gcc/testsuite/gcc.target/i386/pr56564-3.c	(revision 0)
++++ gcc/testsuite/gcc.target/i386/pr56564-3.c	(revision 199985)
+@@ -0,0 +1,29 @@
++/* PR target/56564 */
++/* { dg-do compile { target { fpic && lp64 } } } */
++/* { dg-skip-if "No symbol interposition for PIC" { *-*-mingw* *-*-cygwin* *-*-darwin* } } */
++/* { dg-options "-O3 -fpic -fdump-tree-optimized" } */
++
++__thread struct S { long a, b; } s = { 5, 6 };
++__thread char t[16] = { 7 };
++
++int
++foo (void)
++{
++  return ((__UINTPTR_TYPE__) &s) & 15;
++}
++
++/* For backwards compatibility we don't assume that t must
++   be aligned to 16 bytes, but align it anyway.  */
++
++int
++bar (void)
++{
++  return ((__UINTPTR_TYPE__) &t[0]) & 15;
++}
++
++/* { dg-final { scan-tree-dump-times "&s" 1 "optimized" } } */
++/* { dg-final { scan-tree-dump-times "&t" 1 "optimized" } } */
++/* { dg-final { scan-tree-dump-times "return 0" 0 "optimized" } } */
++/* { dg-final { scan-assembler-not ".align\[ \t]*16\[^:]*\[\n\r]s:" { target { *-*-linux* } } } } */
++/* { dg-final { scan-assembler ".align\[ \t]*16\[^:]*\[\n\r]t:" { target { *-*-linux* } } } } */
++/* { dg-final { cleanup-tree-dump "optimized" } } */
+--- gcc/testsuite/gcc.target/i386/pr56564-4.c	(revision 0)
++++ gcc/testsuite/gcc.target/i386/pr56564-4.c	(revision 199898)
+@@ -0,0 +1,22 @@
++/* PR target/56564 */
++/* { dg-do compile { target { *-*-linux* && lp64 } } } */
++/* { dg-options "-O3 -fno-pic -fdump-tree-optimized" } */
++
++__thread struct S { long a, b; } s = { 5, 6 };
++__thread char t[16] = { 7 };
++
++int
++foo (void)
++{
++  return ((__UINTPTR_TYPE__) &s) & 15;
++}
++
++int
++bar (void)
++{
++  return ((__UINTPTR_TYPE__) &t[0]) & 15;
++}
++
++/* { dg-final { scan-assembler-not ".align\[ \t]*16\[^:]*\[\n\r]s:" { target { *-*-linux* } } } } */
++/* { dg-final { scan-assembler ".align\[ \t]*16\[^:]*\[\n\r]t:" { target { *-*-linux* } } } } */
++/* { dg-final { cleanup-tree-dump "optimized" } } */
+--- gcc/testsuite/gcc.dg/vect/costmodel/i386/costmodel-vect-31.c	(revision 199897)
++++ gcc/testsuite/gcc.dg/vect/costmodel/i386/costmodel-vect-31.c	(revision 199898)
+@@ -18,7 +18,7 @@ struct s{
+   struct t e;   /* unaligned (offset 2N+4N+4 B) */
+ };
+  
+-struct s tmp;
++struct s tmp = { 1 };
+ 
+ int main1 ()
+ {  
+--- gcc/testsuite/gcc.dg/vect/costmodel/x86_64/costmodel-vect-31.c	(revision 199897)
++++ gcc/testsuite/gcc.dg/vect/costmodel/x86_64/costmodel-vect-31.c	(revision 199898)
+@@ -18,7 +18,7 @@ struct s{
+   struct t e;   /* unaligned (offset 2N+4N+4 B) */
+ };
+  
+-struct s tmp;
++struct s tmp = { 1 };
+ 
+ int main1 ()
+ {  
+--- gcc/testsuite/gcc.dg/tree-ssa/loop-19.c	(revision 200212)
++++ gcc/testsuite/gcc.dg/tree-ssa/loop-19.c	(revision 200213)
+@@ -6,7 +6,7 @@
+ 
+ /* { dg-do compile { target { i?86-*-* || { x86_64-*-* || powerpc_hard_double } } } } */
+ /* { dg-require-effective-target nonpic } */
+-/* { dg-options "-O3 -fno-tree-loop-distribute-patterns -fno-prefetch-loop-arrays -fdump-tree-optimized" } */
++/* { dg-options "-O3 -fno-tree-loop-distribute-patterns -fno-prefetch-loop-arrays -fdump-tree-optimized -fno-common" } */
+ 
+ # define N      2000000
+ double   a[N],c[N];