[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 16/38] target-s390x: Use mulu2 for mlgr insn
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 16/38] target-s390x: Use mulu2 for mlgr insn |
Date: |
Tue, 19 Feb 2013 23:52:04 -0800 |
Signed-off-by: Richard Henderson <address@hidden>
---
target-s390x/helper.h | 1 -
target-s390x/int_helper.c | 8 --------
target-s390x/translate.c | 3 +--
3 files changed, 1 insertion(+), 11 deletions(-)
diff --git a/target-s390x/helper.h b/target-s390x/helper.h
index dd90d93..0d80aa0 100644
--- a/target-s390x/helper.h
+++ b/target-s390x/helper.h
@@ -8,7 +8,6 @@ DEF_HELPER_FLAGS_4(mvc, TCG_CALL_NO_WG, void, env, i32, i64,
i64)
DEF_HELPER_FLAGS_4(clc, TCG_CALL_NO_WG, i32, env, i32, i64, i64)
DEF_HELPER_3(mvcl, i32, env, i32, i32)
DEF_HELPER_FLAGS_4(clm, TCG_CALL_NO_WG, i32, env, i32, i32, i64)
-DEF_HELPER_FLAGS_3(mul128, TCG_CALL_NO_RWG, i64, env, i64, i64)
DEF_HELPER_FLAGS_3(divs32, TCG_CALL_NO_WG, s64, env, s64, s64)
DEF_HELPER_FLAGS_3(divu32, TCG_CALL_NO_WG, i64, env, i64, i64)
DEF_HELPER_FLAGS_3(divs64, TCG_CALL_NO_WG, s64, env, s64, s64)
diff --git a/target-s390x/int_helper.c b/target-s390x/int_helper.c
index 6858301..af16b21 100644
--- a/target-s390x/int_helper.c
+++ b/target-s390x/int_helper.c
@@ -29,14 +29,6 @@
#define HELPER_LOG(x...)
#endif
-/* 64/64 -> 128 unsigned multiplication */
-uint64_t HELPER(mul128)(CPUS390XState *env, uint64_t v1, uint64_t v2)
-{
- uint64_t reth;
- mulu64(&env->retxl, &reth, v1, v2);
- return reth;
-}
-
/* 64/32 -> 32 signed division */
int64_t HELPER(divs32)(CPUS390XState *env, int64_t a, int64_t b64)
{
diff --git a/target-s390x/translate.c b/target-s390x/translate.c
index a57296c..bdf69a3 100644
--- a/target-s390x/translate.c
+++ b/target-s390x/translate.c
@@ -2566,8 +2566,7 @@ static ExitStatus op_mul(DisasContext *s, DisasOps *o)
static ExitStatus op_mul128(DisasContext *s, DisasOps *o)
{
- gen_helper_mul128(o->out, cpu_env, o->in1, o->in2);
- return_low128(o->out2);
+ tcg_gen_mulu2_i64(o->out2, o->out, o->in1, o->in2);
return NO_EXIT;
}
--
1.8.1.2
- [Qemu-devel] [PATCH 01/38] tcg: Make 32-bit multiword operations optional for 64-bit hosts, (continued)
- [Qemu-devel] [PATCH 01/38] tcg: Make 32-bit multiword operations optional for 64-bit hosts, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 03/38] tcg-sparc: Always implement 32-bit multiword ops, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 05/38] tcg: Add signed multiword multiplication operations, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 07/38] tcg: Implement multiword multiply helpers, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 06/38] tcg: Implement a 64-bit to 32-bit extraction helper, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 08/38] tcg: Implement multiword addition helpers, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 12/38] target-i386: Use add2 to implement the ADX extension, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 10/38] tcg-arm: Implement muls2_i32, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 09/38] tcg-i386: Implement multiword arithmetic ops, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 14/38] tcg: Apply life analysis to 64-bit multiword arithmetic ops, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 16/38] target-s390x: Use mulu2 for mlgr insn,
Richard Henderson <=
- [Qemu-devel] [PATCH 11/38] target-i386: Use mulu2 and muls2, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 13/38] tcg: Implement muls2 with mulu2, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 18/38] target-arm: Use mul[us]2 and add2 in umlal et al, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 15/38] target-alpha: Use mulu2 for umulh insn, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 28/38] target-ppc: Compute addition carry with setcond, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 32/38] target-ppc: Compute mullwo without branches, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 34/38] target-sparc: Use mul*2 for multiply, Richard Henderson, 2013/02/20
- [Qemu-devel] [PATCH 33/38] target-sparc: Use official add2/sub2 interfaces for addx/subx, Richard Henderson, 2013/02/20