diff options
Diffstat (limited to 'gcc-4.9/gcc/doc/tm.texi.in')
| -rw-r--r-- | gcc-4.9/gcc/doc/tm.texi.in | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/gcc-4.9/gcc/doc/tm.texi.in b/gcc-4.9/gcc/doc/tm.texi.in index fc040f5a9..3e9d2fbdc 100644 --- a/gcc-4.9/gcc/doc/tm.texi.in +++ b/gcc-4.9/gcc/doc/tm.texi.in @@ -3367,6 +3367,7 @@ defined and 0 otherwise. This is about eliminating the frame pointer and arg pointer. @hook TARGET_FRAME_POINTER_REQUIRED +@hook TARGET_CAN_OMIT_LEAF_FRAME_POINTER @findex get_frame_size @defmac INITIAL_FRAME_POINTER_OFFSET (@var{depth-var}) @@ -3714,8 +3715,6 @@ stack. @hook TARGET_SMALL_REGISTER_CLASSES_FOR_MODE_P -@hook TARGET_FLAGS_REGNUM - @node Scalar Return @subsection How Scalar Function Values Are Returned @cindex return values in registers @@ -4631,10 +4630,11 @@ for comparisons whose argument is a @code{plus}: @smallexample #define SELECT_CC_MODE(OP,X,Y) \ - (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \ - ? ((OP == EQ || OP == NE) ? CCFPmode : CCFPEmode) \ - : ((GET_CODE (X) == PLUS || GET_CODE (X) == MINUS \ - || GET_CODE (X) == NEG) \ + (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \ + ? ((OP == LT || OP == LE || OP == GT || OP == GE) \ + ? CCFPEmode : CCFPmode) \ + : ((GET_CODE (X) == PLUS || GET_CODE (X) == MINUS \ + || GET_CODE (X) == NEG || GET_CODE (x) == ASHIFT) \ ? CC_NOOVmode : CCmode)) @end smallexample @@ -4657,10 +4657,11 @@ then @code{REVERSIBLE_CC_MODE (@var{mode})} must be zero. You need not define this macro if it would always returns zero or if the floating-point format is anything other than @code{IEEE_FLOAT_FORMAT}. For example, here is the definition used on the SPARC, where floating-point -inequality comparisons are always given @code{CCFPEmode}: +inequality comparisons are given either @code{CCFPEmode} or @code{CCFPmode}: @smallexample -#define REVERSIBLE_CC_MODE(MODE) ((MODE) != CCFPEmode) +#define REVERSIBLE_CC_MODE(MODE) \ + ((MODE) != CCFPEmode && (MODE) != CCFPmode) @end smallexample @end defmac @@ -4670,7 +4671,7 @@ comparison done in CC_MODE @var{mode}. The macro is used only in case @code{REVERSIBLE_CC_MODE (@var{mode})} is nonzero. Define this macro in case machine has some non-standard way how to reverse certain conditionals. For instance in case all floating point conditions are non-trapping, compiler may -freely convert unordered compares to ordered one. Then definition may look +freely convert unordered compares to ordered ones. Then definition may look like: @smallexample @@ -4684,6 +4685,8 @@ like: @hook TARGET_CC_MODES_COMPATIBLE +@hook TARGET_FLAGS_REGNUM + @node Costs @section Describing Relative Costs of Operations @cindex costs of instructions @@ -7188,6 +7191,8 @@ tables, and hence is desirable if it works. @hook TARGET_DELAY_VARTRACK +@hook TARGET_STRICT_ALIGN + @defmac ASM_OUTPUT_DWARF_DELTA (@var{stream}, @var{size}, @var{label1}, @var{label2}) A C statement to issue assembly directives that create a difference @var{lab1} minus @var{lab2}, using an integer of the given @var{size}. @@ -8405,8 +8410,6 @@ routine for target specific customizations of the system printf and scanf formatter settings. @end defmac -@hook TARGET_RELAXED_ORDERING - @hook TARGET_INVALID_ARG_FOR_UNPROTOTYPED_FN @hook TARGET_INVALID_CONVERSION @@ -8451,6 +8454,8 @@ and the associated definitions of those functions. @hook TARGET_ASAN_SHADOW_OFFSET +@hook TARGET_SET_FP_INSN + @hook TARGET_MEMMODEL_CHECK @hook TARGET_ATOMIC_TEST_AND_SET_TRUEVAL |