diff options
Diffstat (limited to 'gcc/config/i386/i386.c')
| -rw-r--r-- | gcc/config/i386/i386.c | 42 |
1 files changed, 3 insertions, 39 deletions
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 1d1c3007e0a..e164c4b457b 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -2632,6 +2632,7 @@ ix86_target_string (int isa, int flags, const char *arch, const char *tune, { "-msseregparm", MASK_SSEREGPARM }, { "-mstack-arg-probe", MASK_STACK_PROBE }, { "-mtls-direct-seg-refs", MASK_TLS_DIRECT_SEG_REFS }, + { "-mvect8-ret-in-mem", MASK_VECT8_RETURNS }, { "-m8bit-idiv", MASK_USE_8BIT_IDIV }, }; @@ -6849,9 +6850,9 @@ return_in_memory_32 (const_tree type, enum machine_mode mode) return false; /* MMX/3dNow values are returned in MM0, - except when it doesn't exits. */ + except when it doesn't exits or the ABI prescribes otherwise. */ if (size == 8) - return !TARGET_MMX; + return !TARGET_MMX || TARGET_VECT8_RETURNS; /* SSE values are returned in XMM0, except when it doesn't exist. */ if (size == 16) @@ -6915,43 +6916,6 @@ ix86_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) #endif } -/* Return false iff TYPE is returned in memory. This version is used - on Solaris 2. It is similar to the generic ix86_return_in_memory, - but differs notably in that when MMX is available, 8-byte vectors - are returned in memory, rather than in MMX registers. */ - -bool -ix86_solaris_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED) -{ - int size; - enum machine_mode mode = type_natural_mode (type, NULL); - - if (TARGET_64BIT) - return return_in_memory_64 (type, mode); - - if (mode == BLKmode) - return 1; - - size = int_size_in_bytes (type); - - if (VECTOR_MODE_P (mode)) - { - /* Return in memory only if MMX registers *are* available. This - seems backwards, but it is consistent with the existing - Solaris x86 ABI. */ - if (size == 8) - return TARGET_MMX; - if (size == 16) - return !TARGET_SSE; - } - else if (mode == TImode) - return !TARGET_SSE; - else if (mode == XFmode) - return 0; - - return size > 12; -} - /* When returning SSE vector types, we have a choice of either (1) being abi incompatible with a -march switch, or (2) generating an error. |