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| author | Torbjorn Granlund <tege@gnu.org> | 1996-11-12 22:51:54 +0000 |
|---|---|---|
| committer | Torbjorn Granlund <tege@gnu.org> | 1996-11-12 22:51:54 +0000 |
| commit | b7747781463e8327cf993370055d344fb26abb54 (patch) | |
| tree | 40782963990283d150c8161c57f5a7a2308bc51a /gcc | |
| parent | bbf42586f00c5c0d0f5b906428c64742eed5826f (diff) | |
| download | gcc-b7747781463e8327cf993370055d344fb26abb54.zip gcc-b7747781463e8327cf993370055d344fb26abb54.tar.gz gcc-b7747781463e8327cf993370055d344fb26abb54.tar.bz2 | |
(MASK_BYTE_OPS): New define.
(TARGET_BYTE_OPS): New define.
(TARGET_SWITCHES): Handle -mbyte.
(LOAD_EXTEND_OP): When MODE is not SImode, return ZERO_EXTEND.
From-SVN: r13147
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/alpha/alpha.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index dbd16a5..2c3df5d 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -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 |