diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 9 | ||||
| -rw-r--r-- | gcc/expr.c | 12 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr57134.c | 29 |
4 files changed, 46 insertions, 9 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5096b2e..e7d352c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,12 @@ +2013-06-14 Alan Modra <amodra@gmail.com> + + PR middle-end/57134 + PR middle-end/57586 + * expr.c (expand_expr_real_1 <normal_inner_ref>): Pass + EXPAND_MEMORY and EXPAND_WRITE to recursive call. Don't use + bitfield expansion when EXPAND_MEMORY. + (expand_expr_real_1 <VIEW_CONVERT_EXPR>): Pass modifier likewise. + 2013-06-13 Michael Meissner <meissner@linux.vnet.ibm.com> * config/rs6000/rs6000.c (rs6000_option_override_internal): Move @@ -9909,11 +9909,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, && modifier != EXPAND_STACK_PARM ? target : NULL_RTX), VOIDmode, - (modifier == EXPAND_INITIALIZER - || modifier == EXPAND_CONST_ADDRESS - || modifier == EXPAND_STACK_PARM) - ? modifier : EXPAND_NORMAL); - + modifier == EXPAND_SUM ? EXPAND_NORMAL : modifier); /* If the bitfield is volatile, we want to access it in the field's mode, not the computed mode. @@ -10072,6 +10068,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, || (MEM_P (op0) && (MEM_ALIGN (op0) < GET_MODE_ALIGNMENT (mode1) || (bitpos % GET_MODE_ALIGNMENT (mode1) != 0)))) + && modifier != EXPAND_MEMORY && ((modifier == EXPAND_CONST_ADDRESS || modifier == EXPAND_INITIALIZER) ? STRICT_ALIGNMENT @@ -10271,10 +10268,7 @@ expand_expr_real_1 (tree exp, rtx target, enum machine_mode tmode, && modifier != EXPAND_STACK_PARM ? target : NULL_RTX), VOIDmode, - (modifier == EXPAND_INITIALIZER - || modifier == EXPAND_CONST_ADDRESS - || modifier == EXPAND_STACK_PARM) - ? modifier : EXPAND_NORMAL); + modifier == EXPAND_SUM ? EXPAND_NORMAL : modifier); if (MEM_P (orig_op0)) { diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0d4c54e..a209086 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2013-06-14 Alan Modra <amodra@gmail.com> + + PR middle-end/57134 + * gcc.dg/pr57134.c: New. + 2013-06-14 Tobias Burnus <burnus@net-b.de> PR fortran/57596 diff --git a/gcc/testsuite/gcc.dg/pr57134.c b/gcc/testsuite/gcc.dg/pr57134.c new file mode 100644 index 0000000..94ff092 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr57134.c @@ -0,0 +1,29 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target stdint_types } */ +/* { dg-options "-O2" } */ +/* { dg-options "-O2 -mstrict-align" { target { powerpc*-*-linux* powerpc*-*-elf* } } } */ + +#include <stdint.h> + +typedef struct { + int64_t counter; +} atomic64_t; + +struct buffer_page { + void *a, *b; + atomic64_t entries; +}; + +static __inline__ __attribute__((always_inline)) int64_t +atomic64_read(const atomic64_t *v) +{ + int64_t t; + __asm__ __volatile__("# %0, %1" : "=r"(t) : "m"(v->counter)); + return t; +} + +int rb_remove_pages(void *p) +{ + struct buffer_page *blah = (void *)((intptr_t) p & -4); + return atomic64_read(&blah->entries); +} |