diff options
Diffstat (limited to 'gcc/config/i386/i386.h')
| -rw-r--r-- | gcc/config/i386/i386.h | 44 |
1 files changed, 39 insertions, 5 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 493a2b5bf9c..17c99b2a8c5 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -1522,6 +1522,20 @@ enum reg_class || ((CLASS) == SIREG) \ || ((CLASS) == DIREG)) +/* Return a class of registers that cannot change FROM mode to TO mode. + + x87 registers can't do subreg as all values are reformated to extended + precision. XMM registers does not support with nonzero offsets equal + to 4, 8 and 12 otherwise valid for integer registers. Since we can't + determine these, prohibit all nonparadoxical subregs changing size. */ + +#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \ + (GET_MODE_SIZE (TO) < GET_MODE_SIZE (FROM) \ + ? reg_classes_intersect_p (FLOAT_SSE_REGS, (CLASS)) \ + || MAYBE_MMX_CLASS_P (CLASS) \ + : GET_MODE_SIZE (FROM) != GET_MODE_SIZE (TO) \ + ? reg_classes_intersect_p (FLOAT_REGS, (CLASS)) : 0) + /* A C statement that adds to CLOBBERS any hard regs the port wishes to automatically clobber for all asms. @@ -1716,17 +1730,28 @@ typedef struct ix86_args { #define FUNCTION_ARG_PARTIAL_NREGS(CUM, MODE, TYPE, NAMED) 0 +/* A C expression that indicates when an argument must be passed by + reference. If nonzero for an argument, a copy of that argument is + made in memory and a pointer to the argument is passed instead of + the argument itself. The pointer is passed in whatever way is + appropriate for passing a pointer to that type. */ + +#define FUNCTION_ARG_PASS_BY_REFERENCE(CUM, MODE, TYPE, NAMED) \ + function_arg_pass_by_reference(&CUM, MODE, TYPE, NAMED) + /* If PIC, we cannot make sibling calls to global functions because the PLT requires %ebx live. - If we are returning floats on the register stack, we cannot make - sibling calls to functions that return floats. (The stack adjust - instruction will wind up after the sibcall jump, and not be executed.) */ + If we are returning floats on the 80387 register stack, we cannot + make a sibcall from a function that doesn't return a float to a + function that does or, conversely, from a function that does return + a float to a function that doesn't; the necessary stack adjustment + would not be executed. */ #define FUNCTION_OK_FOR_SIBCALL(DECL) \ ((DECL) \ && (! flag_pic || ! TREE_PUBLIC (DECL)) \ && (! TARGET_FLOAT_RETURNS_IN_80387 \ - || ! FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (TREE_TYPE (DECL)))) \ - || FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (TREE_TYPE (cfun->decl)))))) + || (FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (TREE_TYPE (DECL)))) \ + == FLOAT_MODE_P (TYPE_MODE (TREE_TYPE (TREE_TYPE (cfun->decl))))))) /* Perform any needed actions needed for a function that is receiving a variable number of arguments. @@ -2068,9 +2093,12 @@ enum ix86_builtins IX86_BUILTIN_CVTPI2PS, IX86_BUILTIN_CVTPS2PI, IX86_BUILTIN_CVTSI2SS, + IX86_BUILTIN_CVTSI642SS, IX86_BUILTIN_CVTSS2SI, + IX86_BUILTIN_CVTSS2SI64, IX86_BUILTIN_CVTTPS2PI, IX86_BUILTIN_CVTTSS2SI, + IX86_BUILTIN_CVTTSS2SI64, IX86_BUILTIN_MAXPS, IX86_BUILTIN_MAXSS, @@ -2116,6 +2144,7 @@ enum ix86_builtins IX86_BUILTIN_PADDB, IX86_BUILTIN_PADDW, IX86_BUILTIN_PADDD, + IX86_BUILTIN_PADDQ, IX86_BUILTIN_PADDSB, IX86_BUILTIN_PADDSW, IX86_BUILTIN_PADDUSB, @@ -2123,6 +2152,7 @@ enum ix86_builtins IX86_BUILTIN_PSUBB, IX86_BUILTIN_PSUBW, IX86_BUILTIN_PSUBD, + IX86_BUILTIN_PSUBQ, IX86_BUILTIN_PSUBSB, IX86_BUILTIN_PSUBSW, IX86_BUILTIN_PSUBUSB, @@ -2327,11 +2357,14 @@ enum ix86_builtins IX86_BUILTIN_CVTPI2PD, IX86_BUILTIN_CVTSI2SD, + IX86_BUILTIN_CVTSI642SD, IX86_BUILTIN_CVTSD2SI, + IX86_BUILTIN_CVTSD2SI64, IX86_BUILTIN_CVTSD2SS, IX86_BUILTIN_CVTSS2SD, IX86_BUILTIN_CVTTSD2SI, + IX86_BUILTIN_CVTTSD2SI64, IX86_BUILTIN_CVTPS2DQ, IX86_BUILTIN_CVTPS2PD, @@ -3286,6 +3319,7 @@ do { \ {"register_and_not_any_fp_reg_operand", {REG}}, \ {"fp_register_operand", {REG}}, \ {"register_and_not_fp_reg_operand", {REG}}, \ + {"vector_move_operand", {CONST_VECTOR, SUBREG, REG, MEM}}, \ /* A list of predicates that do special things with modes, and so should not elicit warnings for VOIDmode match_operand. */ |