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| author | Jakub Jelinek <jakub@redhat.com> | 2012-01-17 17:21:49 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2012-01-17 17:21:49 +0100 |
| commit | ee3d2ecdc509868214e682f4192cf7047d57a78d (patch) | |
| tree | 063806ffabfecffdb1aa308a9a26013274f0668b /gcc/config/rs6000/rs6000.c | |
| parent | 3b4f05ec1ee0a91c937f9c90df8addf6aec7ad5f (diff) | |
| download | gcc-ee3d2ecdc509868214e682f4192cf7047d57a78d.zip gcc-ee3d2ecdc509868214e682f4192cf7047d57a78d.tar.gz gcc-ee3d2ecdc509868214e682f4192cf7047d57a78d.tar.bz2 | |
re PR target/51872 (Shrink-wrapping with -mminimal-toc causes bootstrap failure)
PR bootstrap/51872
* hard-reg-set.h (struct hard_reg_set_container): New type.
* target.h (struct hard_reg_set_container): Forward declare.
* target.def (set_up_by_prologue): New target hook.
* doc/tm.texi.in (TARGET_SET_UP_BY_PROLOGUE): Document it.
* doc/tm.texi: Regenerated.
* function.c (thread_prologue_and_epilogue_insns): Change
set_up_by_prologue HARD_REG_SET into struct hard_reg_set_container.
Call targetm.set_up_by_prologue on it.
* config/rs6000/rs6000.c (rs6000_set_up_by_prologue): New function.
(TARGET_SET_UP_BY_PROLOGUE): Redefine to it.
From-SVN: r183254
Diffstat (limited to 'gcc/config/rs6000/rs6000.c')
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 5329153..6434be5 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -1227,6 +1227,7 @@ static bool rs6000_cannot_force_const_mem (enum machine_mode, rtx); static bool rs6000_legitimate_constant_p (enum machine_mode, rtx); static bool rs6000_save_toc_in_prologue_p (void); static void rs6000_code_end (void) ATTRIBUTE_UNUSED; +static void rs6000_set_up_by_prologue (struct hard_reg_set_container *); /* Hash table stuff for keeping track of TOC entries. */ @@ -1392,6 +1393,9 @@ static const struct attribute_spec rs6000_attribute_table[] = #define TARGET_ASM_ASSEMBLE_VISIBILITY rs6000_assemble_visibility #endif +#undef TARGET_SET_UP_BY_PROLOGUE +#define TARGET_SET_UP_BY_PROLOGUE rs6000_set_up_by_prologue + #undef TARGET_HAVE_TLS #define TARGET_HAVE_TLS HAVE_AS_TLS @@ -27903,6 +27907,19 @@ rs6000_code_end (void) current_function_decl = NULL; } +/* Add r30 to hard reg set if the prologue sets it up and it is not + pic_offset_table_rtx. */ + +static void +rs6000_set_up_by_prologue (struct hard_reg_set_container *set) +{ + if (!TARGET_SINGLE_PIC_BASE + && TARGET_TOC + && TARGET_MINIMAL_TOC + && get_pool_size () != 0) + add_to_hard_reg_set (&set->set, Pmode, RS6000_PIC_OFFSET_TABLE_REGNUM); +} + struct gcc_target targetm = TARGET_INITIALIZER; #include "gt-rs6000.h" |