mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-04-02 05:50:26 +08:00
Code Issues Packages Projects Releases Wiki Activity

re PR target/63538 ([X86_64] With -mcmodel=medium .lrodata accesses do not use 64-bit addresses)

Browse Source 
PR target/63538
	* config/i386/i386.c (in_large_data_p): Reject automatic variables.
	(ix86_encode_section_info): Do not check for non-automatic varibles
	when setting SYMBOL_FLAG_FAR_ADDR flag.
	(x86_64_elf_select_section): Do not check ix86_cmodel here.
	(x86_64_elf_unique_section): Ditto.
	(x86_elf_aligned_common): Emit tab before .largecomm.

testsuite/ChangeLog:

	PR target/63538
	* gcc.target/i386/pr63538.c: New test.

From-SVN: r217156
This commit is contained in:
Uros Bizjak 2014-11-05 22:00:07 +01:00
parent 2374257aff
commit b478c0cd39
4 changed files with 37 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2014-11-05 Uros Bizjak <ubizjak@gmail.com>
PR target/63538
* config/i386/i386.c (in_large_data_p): Reject automatic variables.
(ix86_encode_section_info): Do not check for non-automatic varibles
when setting SYMBOL_FLAG_FAR_ADDR flag.
(x86_64_elf_select_section): Do not check ix86_cmodel here.
(x86_64_elf_unique_section): Ditto.
(x86_elf_aligned_common): Emit tab before .largecomm.
2014-11-05 Anthony Brandon <anthony.brandon@gmail.com>
PR driver/36312

16
gcc/config/i386/i386.c
View File

@ -5090,6 +5090,10 @@ ix86_in_large_data_p (tree exp)
if (TREE_CODE (exp) == FUNCTION_DECL)
return false;
/* Automatic variables are never large data. */
if (TREE_CODE (exp) == VAR_DECL && !is_global_var (exp))
return false;
if (TREE_CODE (exp) == VAR_DECL && DECL_SECTION_NAME (exp))
{
const char *section = DECL_SECTION_NAME (exp);
@ -5123,8 +5127,7 @@ ATTRIBUTE_UNUSED static section *
x86_64_elf_select_section (tree decl, int reloc,
unsigned HOST_WIDE_INT align)
{
if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC)
&& ix86_in_large_data_p (decl))
if (ix86_in_large_data_p (decl))
{
const char *sname = NULL;
unsigned int flags = SECTION_WRITE;
@ -5210,8 +5213,7 @@ x86_64_elf_section_type_flags (tree decl, const char *name, int reloc)
static void ATTRIBUTE_UNUSED
x86_64_elf_unique_section (tree decl, int reloc)
{
if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC)
&& ix86_in_large_data_p (decl))
if (ix86_in_large_data_p (decl))
{
const char *prefix = NULL;
/* We only need to use .gnu.linkonce if we don't have COMDAT groups. */
@ -5280,7 +5282,7 @@ x86_elf_aligned_common (FILE *file,
{
if ((ix86_cmodel == CM_MEDIUM || ix86_cmodel == CM_MEDIUM_PIC)
&& size > (unsigned int)ix86_section_threshold)
fputs (".largecomm\t", file);
fputs ("\t.largecomm\t", file);
else
fputs (COMMON_ASM_OP, file);
assemble_name (file, name);
@ -45178,9 +45180,7 @@ ix86_encode_section_info (tree decl, rtx rtl, int first)
{
default_encode_section_info (decl, rtl, first);
if (TREE_CODE (decl) == VAR_DECL
&& (TREE_STATIC (decl) || DECL_EXTERNAL (decl))
&& ix86_in_large_data_p (decl))
if (ix86_in_large_data_p (decl))
SYMBOL_REF_FLAGS (XEXP (rtl, 0)) |= SYMBOL_FLAG_FAR_ADDR;
}

7
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,8 @@
2014-11-05 Uros Bizjak <ubizjak@gmail.com>
PR target/63538
* gcc.target/i386/pr63538.c: New test.
2014-11-05 Eric Botcazou <ebotcazou@adacore.com>
* gnat.dg/discr42.adb: New test.
@ -21,7 +26,7 @@
* gnat.dg/inline5.adb: New test.
* gnat.dg/inline5_pkg.ad[sb]: New helper.
* gnat.dg/inline6.adb: New test.
* gnat.dg/inline6_pkg.ad[sb]: New helper.
* gnat.dg/inline6_pkg.ad[sb]: New helper.
* gnat.dg/inline7.adb: New test.
* gnat.dg/inline7_pkg1.ad[sb]: New helper.
* gnat.dg/inline7_pkg2.ad[sb]: Likewise.

13
gcc/testsuite/gcc.target/i386/pr63538.c Normal file
View File

@ -0,0 +1,13 @@
/* PR target/63538 */
/* { dg-do compile } */
/* { dg-require-effective-target lp64 } */
/* { dg-options "-O2 -mcmodel=medium -mlarge-data-threshold=0" } */
static char *str = "Hello World";
char *foo ()
{
return str;
}
/* { dg-final { scan-assembler "movabs" } } */