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Define MAX_FIXED_MODE_SIZE/TARGET_MEMBER_TYPE_FORCES_BLK for i386 

gcc/

	PR target/20020
	* config/i386/i386.c (ix86_member_type_forces_blk): New function.
	(TARGET_MEMBER_TYPE_FORCES_BLK): New macro.

	* config/i386/i386.h (MAX_FIXED_MODE_SIZE): New macro.

gcc/testsuite/

	PR target/20020
	* gcc.target/i386/pr20020-1.c: New test.
	* gcc.target/i386/pr20020-2.c: Likewise.
	* gcc.target/i386/pr20020-3.c: Likewise.

Co-Authored-By: Gary Funck <gary@intrepid.com>

From-SVN: r190492
This commit is contained in:
H.J. Lu 2012-08-17 19:59:46 +00:00 committed by H.J. Lu
parent fd9da2c807
commit e327d1a362
7 changed files with 113 additions and 0 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2012-08-17 H.J. Lu <hongjiu.lu@intel.com>
Gary Funck <gary@intrepid.com>
PR target/20020
* config/i386/i386.c (ix86_member_type_forces_blk): New function.
(TARGET_MEMBER_TYPE_FORCES_BLK): New macro.
* config/i386/i386.h (MAX_FIXED_MODE_SIZE): New macro.
2012-08-17 Marc Glisse <marc.glisse@inria.fr>
* simplify-rtx.c (simplify_binary_operation_1): Optimize shuffle of

15
gcc/config/i386/i386.c
View File

@ -7545,6 +7545,18 @@ ix86_promote_function_mode (const_tree type, enum machine_mode mode,
for_return);
}
/* Return true if a structure, union or array with MODE containing FIELD
should be accessed using BLKmode. */
static bool
ix86_member_type_forces_blk (const_tree field, enum machine_mode mode)
{
/* Union with XFmode must be in BLKmode. */
return (mode == XFmode
&& (TREE_CODE (DECL_FIELD_CONTEXT (field)) == UNION_TYPE
|| TREE_CODE (DECL_FIELD_CONTEXT (field)) == QUAL_UNION_TYPE));
}
rtx
ix86_libcall_value (enum machine_mode mode)
{
@ -40725,6 +40737,9 @@ ix86_memmodel_check (unsigned HOST_WIDE_INT val)
#undef TARGET_PROMOTE_FUNCTION_MODE
#define TARGET_PROMOTE_FUNCTION_MODE ix86_promote_function_mode
#undef TARGET_MEMBER_TYPE_FORCES_BLK
#define TARGET_MEMBER_TYPE_FORCES_BLK ix86_member_type_forces_blk
#undef TARGET_SECONDARY_RELOAD
#define TARGET_SECONDARY_RELOAD ix86_secondary_reload

4
gcc/config/i386/i386.h
View File

@ -1816,6 +1816,10 @@ do { \
#define BRANCH_COST(speed_p, predictable_p) \
(!(speed_p) ? 2 : (predictable_p) ? 0 : ix86_branch_cost)
/* An integer expression for the size in bits of the largest integer machine
mode that should actually be used. We allow pairs of registers. */
#define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (TARGET_64BIT ? TImode : DImode)
/* Define this macro as a C expression which is nonzero if accessing
less than a word of memory (i.e. a `char' or a `short') is no
faster than accessing a word of memory, i.e., if such access

8
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2012-08-17 H.J. Lu <hongjiu.lu@intel.com>
Gary Funck <gary@intrepid.com>
PR target/20020
* gcc.target/i386/pr20020-1.c: New test.
* gcc.target/i386/pr20020-2.c: Likewise.
* gcc.target/i386/pr20020-3.c: Likewise.
2012-08-17 Marc Glisse <marc.glisse@inria.fr>
* gcc.target/i386/perm-concat.c: New test.

26
gcc/testsuite/gcc.target/i386/pr20020-1.c Normal file
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@ -0,0 +1,26 @@
/* Check that 128-bit struct's are represented as TImode values. */
/* { dg-do compile { target int128 } } */
/* { dg-options "-O2 -fdump-rtl-expand" } */
struct shared_ptr_struct
{
unsigned long long phase:48;
unsigned short thread:16;
union
{
void *addr;
unsigned long long pad;
};
};
typedef struct shared_ptr_struct sptr_t;
sptr_t S;
sptr_t
sptr_result (void)
{
return S;
}
/* { dg-final { scan-rtl-dump "\\\(set \\\(reg:TI \[0-9\]* \\\[ <retval> \\\]\\\)" "expand" } } */
/* { dg-final { scan-rtl-dump "\\\(set \\\(reg/i:TI 0 ax\\\)" "expand" } } */
/* { dg-final { cleanup-rtl-dump "expand" } } */

24
gcc/testsuite/gcc.target/i386/pr20020-2.c Normal file
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@ -0,0 +1,24 @@
/* Check that 128-bit struct's are represented as TImode values. */
/* { dg-do compile { target int128 } } */
/* { dg-options "-O2 -fdump-rtl-expand" } */
struct shared_ptr_struct
{
unsigned long long phase:48;
unsigned short thread:16;
union
{
void *addr;
unsigned long long pad;
};
};
typedef struct shared_ptr_struct sptr_t;
void
copy_sptr (sptr_t *dest, sptr_t src)
{
*dest = src;
}
/* { dg-final { scan-rtl-dump "\\\(set \\\(reg:TI \[0-9\]*" "expand" } } */
/* { dg-final { cleanup-rtl-dump "expand" } } */

27
gcc/testsuite/gcc.target/i386/pr20020-3.c Normal file
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@ -0,0 +1,27 @@
/* Check that 128-bit struct's are represented as TImode values. */
/* { dg-do compile { target int128 } } */
/* { dg-options "-O2 -fdump-rtl-expand" } */
struct shared_ptr_struct
{
unsigned long long phase:48;
unsigned short thread:16;
union
{
void *addr;
unsigned long long pad;
};
};
typedef struct shared_ptr_struct sptr_t;
sptr_t sptr_1, sptr_2;
void
copy_sptr (void)
{
sptr_1 = sptr_2;
}
/* { dg-final { scan-rtl-dump "\\\(set \\\(reg:TI \[0-9\]*" "expand" } } */
/* { dg-final { scan-rtl-dump "\\\(set \\\(mem/c:TI" "expand" } } */
/* { dg-final { cleanup-rtl-dump "expand" } } */