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rs6000.c (rs6000_cannot_force_const_mem): New.

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* config/rs6000/rs6000.c (rs6000_cannot_force_const_mem): New.
        (TARGET_CANNOT_FORCE_CONST_MEM): Use it.

From-SVN: r105069
This commit is contained in:
Richard Henderson 2005-10-06 15:48:48 -07:00 committed by Richard Henderson
parent 4bb1e03799
commit 27add2e89a
2 changed files with 18 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-10-06 Richard Henderson <rth@redhat.com>
* config/rs6000/rs6000.c (rs6000_cannot_force_const_mem): New.
(TARGET_CANNOT_FORCE_CONST_MEM): Use it.
2005-10-06 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/22216

14
gcc/config/rs6000/rs6000.c
View File

@ -748,6 +748,7 @@ static rtx rs6000_emit_vector_compare (enum rtx_code, rtx, rtx,
static int get_vsel_insn (enum machine_mode);
static void rs6000_emit_vector_select (rtx, rtx, rtx, rtx);
static tree rs6000_stack_protect_fail (void);
static bool rs6000_cannot_force_const_mem (rtx x);
const int INSN_NOT_AVAILABLE = -1;
static enum machine_mode rs6000_eh_return_filter_mode (void);
@ -876,7 +877,7 @@ static const char alt_reg_names[][8] =
#define TARGET_HAVE_TLS HAVE_AS_TLS
#undef TARGET_CANNOT_FORCE_CONST_MEM
#define TARGET_CANNOT_FORCE_CONST_MEM rs6000_tls_referenced_p
#define TARGET_CANNOT_FORCE_CONST_MEM rs6000_cannot_force_const_mem
#undef TARGET_ASM_FUNCTION_PROLOGUE
#define TARGET_ASM_FUNCTION_PROLOGUE rs6000_output_function_prologue
@ -3107,6 +3108,17 @@ rs6000_legitimize_tls_address (rtx addr, enum tls_model model)
return dest;
}
/* Primarily this is required for TLS symbols, but given that our move
patterns *ought* to be able to handle any symbol at any time, we
should never be spilling symbolic operands to the constant pool, ever. */
static bool
rs6000_cannot_force_const_mem (rtx x)
{
enum rtx_code code = GET_CODE (x);
return code == SYMBOL_REF || code == LABEL_REF || code == CONST;
}
/* Return 1 if X contains a thread-local symbol. */
bool