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(MASK_BYTE_OPS): New define.

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(TARGET_BYTE_OPS): New define.
(TARGET_SWITCHES): Handle -mbyte.
(LOAD_EXTEND_OP): When MODE is not SImode, return ZERO_EXTEND.

From-SVN: r13147
This commit is contained in:
Torbjorn Granlund 1996-11-12 22:51:54 +00:00
parent bbf42586f0
commit b774778146
1 changed files with 7 additions and 1 deletions
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8
gcc/config/alpha/alpha.h
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@ -157,6 +157,11 @@ extern enum alpha_fp_trap_mode alpha_fptm;
#define MASK_BUILD_CONSTANTS 128
#define TARGET_BUILD_CONSTANTS (target_flags & MASK_BUILD_CONSTANTS)
/* This means that the processor has byte and half word loads and stores. */
#define MASK_BYTE_OPS 256
#define TARGET_BYTE_OPS (target_flags & MASK_BYTE_OPS)
/* Macro to define tables used to set the flags.
This is a list in braces of pairs in braces,
each pair being { "NAME", VALUE }
@ -174,6 +179,7 @@ extern enum alpha_fp_trap_mode alpha_fptm;
{"ieee", MASK_IEEE|MASK_IEEE_CONFORMANT}, \
{"ieee-with-inexact", MASK_IEEE_WITH_INEXACT|MASK_IEEE_CONFORMANT}, \
{"build-constants", MASK_BUILD_CONSTANTS}, \
{"byte", MASK_BYTE_OPS}, \
{"", TARGET_DEFAULT | TARGET_CPU_DEFAULT} }
#define TARGET_DEFAULT MASK_FP|MASK_FPREGS
@ -1466,7 +1472,7 @@ extern void final_prescan_insn ();
will either zero-extend or sign-extend. The value of this macro should
be the code that says which one of the two operations is implicitly
done, NIL if none. */
#define LOAD_EXTEND_OP(MODE) SIGN_EXTEND
#define LOAD_EXTEND_OP(MODE) ((MODE) == SImode ? SIGN_EXTEND : ZERO_EXTEND)
/* Define if loading short immediate values into registers sign extends. */
#define SHORT_IMMEDIATES_SIGN_EXTEND