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[Qemu-devel] [PATCH v2 1/2] target-arm: Use TCG operation for Neon 64 bi
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [PATCH v2 1/2] target-arm: Use TCG operation for Neon 64 bit negation |
Date: |
Fri, 19 Oct 2012 14:06:58 +0100 |
Use the TCG operation to do Neon 64 bit negations rather than calling
a helper routine for it.
Signed-off-by: Peter Maydell <address@hidden>
---
target-arm/helper.h | 1 -
target-arm/neon_helper.c | 6 ------
target-arm/translate.c | 4 +++-
3 files changed, 3 insertions(+), 8 deletions(-)
diff --git a/target-arm/helper.h b/target-arm/helper.h
index 8b9adf1..fa3472f 100644
--- a/target-arm/helper.h
+++ b/target-arm/helper.h
@@ -339,7 +339,6 @@ DEF_HELPER_2(neon_mull_s16, i64, i32, i32)
DEF_HELPER_1(neon_negl_u16, i64, i64)
DEF_HELPER_1(neon_negl_u32, i64, i64)
-DEF_HELPER_1(neon_negl_u64, i64, i64)
DEF_HELPER_2(neon_qabs_s8, i32, env, i32)
DEF_HELPER_2(neon_qabs_s16, i32, env, i32)
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index 8bb5129..616cf95 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -1665,12 +1665,6 @@ uint64_t HELPER(neon_negl_u32)(uint64_t x)
return low | ((uint64_t)high << 32);
}
-/* FIXME: There should be a native op for this. */
-uint64_t HELPER(neon_negl_u64)(uint64_t x)
-{
- return -x;
-}
-
/* Saturating sign manipulation. */
/* ??? Make these use NEON_VOP1 */
#define DO_QABS8(x) do { \
diff --git a/target-arm/translate.c b/target-arm/translate.c
index daccb15..d33f94c 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -4184,7 +4184,9 @@ static inline void gen_neon_negl(TCGv_i64 var, int size)
switch (size) {
case 0: gen_helper_neon_negl_u16(var, var); break;
case 1: gen_helper_neon_negl_u32(var, var); break;
- case 2: gen_helper_neon_negl_u64(var, var); break;
+ case 2:
+ tcg_gen_neg_i64(var, var);
+ break;
default: abort();
}
}
--
1.7.9.5