diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-08-05 01:55:23 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-08-24 11:22:42 -0700 |
| commit | cba10bb3c8875f428821608f9dfb860a97a63aa1 (patch) | |
| tree | 29f577d8748cda82cb5297d14d76de05cc26b684 /tcg/ppc/tcg-target.h | |
| parent | b0a433be48c120fdc2be676216a240a316f3613e (diff) | |
tcg/ppc: Implement negsetcond_*
In the general case we simply negate. However with isel we
may load -1 instead of 1 with no extra effort.
Consolidate EQ0 and NE0 logic. Replace the NE0 zero-extension
with inversion+negation of EQ0, which is never worse and may
eliminate one insn. Provide a special case for -EQ0.
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg/ppc/tcg-target.h')
| -rw-r--r-- | tcg/ppc/tcg-target.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tcg/ppc/tcg-target.h b/tcg/ppc/tcg-target.h index a2ca0b44ce..8bfb14998e 100644 --- a/tcg/ppc/tcg-target.h +++ b/tcg/ppc/tcg-target.h @@ -97,7 +97,7 @@ typedef enum { #define TCG_TARGET_HAS_sextract_i32 0 #define TCG_TARGET_HAS_extract2_i32 0 #define TCG_TARGET_HAS_movcond_i32 1 -#define TCG_TARGET_HAS_negsetcond_i32 0 +#define TCG_TARGET_HAS_negsetcond_i32 1 #define TCG_TARGET_HAS_mulu2_i32 0 #define TCG_TARGET_HAS_muls2_i32 0 #define TCG_TARGET_HAS_muluh_i32 1 @@ -135,7 +135,7 @@ typedef enum { #define TCG_TARGET_HAS_sextract_i64 0 #define TCG_TARGET_HAS_extract2_i64 0 #define TCG_TARGET_HAS_movcond_i64 1 -#define TCG_TARGET_HAS_negsetcond_i64 0 +#define TCG_TARGET_HAS_negsetcond_i64 1 #define TCG_TARGET_HAS_add2_i64 1 #define TCG_TARGET_HAS_sub2_i64 1 #define TCG_TARGET_HAS_mulu2_i64 0 |