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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-05-26 18:49:06 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-05-26 18:49:06 -0400 |
| commit | 35bb77fd397ff2d2fefd3cfc394270e3d99ed9de (patch) | |
| tree | a09d113ada5bb436dc3b14452005cc4dc5d124f5 /gcc | |
| parent | b7a775b20bca07cac697f0b99fb85864ee515cef (diff) | |
| download | gcc-35bb77fd397ff2d2fefd3cfc394270e3d99ed9de.zip gcc-35bb77fd397ff2d2fefd3cfc394270e3d99ed9de.tar.gz gcc-35bb77fd397ff2d2fefd3cfc394270e3d99ed9de.tar.bz2 | |
(CANONICALIZE_COMPARISON): New macro.
From-SVN: r7354
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/alpha/alpha.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc/config/alpha/alpha.h b/gcc/config/alpha/alpha.h index ba13533..5b7e72e 100644 --- a/gcc/config/alpha/alpha.h +++ b/gcc/config/alpha/alpha.h @@ -1278,6 +1278,26 @@ extern char *current_function_name; #define FLOAT_STORE_FLAG_VALUE 0.5 +/* Canonicalize a comparison from one we don't have to one we do have. */ + +#define CANONICALIZE_COMPARISON(CODE,OP0,OP1) \ + do { \ + if (((CODE) == GE || (CODE) == GT || (CODE) == GEU || (CODE) == GTU) \ + && (GET_CODE (OP1) == REG || (OP1) == const0_rtx)) \ + { \ + rtx tem = (OP0); \ + (OP0) = (OP1); \ + (OP1) = tem; \ + (CODE) = swap_condition (CODE); \ + } \ + if (((CODE) == LT || (CODE) == LTU) \ + && GET_CODE (OP1) == CONST_INT && INTVAL (OP1) == 256) \ + { \ + (CODE) = (CODE) == LT ? LE : LEU; \ + (OP1) = GEN_INT (255); \ + } \ + } while (0) + /* Specify the machine mode that pointers have. After generation of rtl, the compiler makes no further distinction between pointers and any other objects of this machine mode. */ |