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[Qemu-devel] [PATCH 07/31] target/s390x: Use unwind data for helper_clc
From: |
Richard Henderson |
Subject: |
[Qemu-devel] [PATCH 07/31] target/s390x: Use unwind data for helper_clc |
Date: |
Mon, 22 May 2017 20:02:48 -0700 |
Signed-off-by: Richard Henderson <address@hidden>
---
target/s390x/mem_helper.c | 18 +++++++++---------
target/s390x/translate.c | 1 -
2 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/target/s390x/mem_helper.c b/target/s390x/mem_helper.c
index 0295485..d04850b 100644
--- a/target/s390x/mem_helper.c
+++ b/target/s390x/mem_helper.c
@@ -215,26 +215,26 @@ void HELPER(mvc)(CPUS390XState *env, uint32_t l, uint64_t
dest, uint64_t src)
/* compare unsigned byte arrays */
uint32_t HELPER(clc)(CPUS390XState *env, uint32_t l, uint64_t s1, uint64_t s2)
{
- int i;
- unsigned char x, y;
- uint32_t cc;
+ uintptr_t ra = GETPC();
+ uint32_t cc = 0;
+ uint32_t i;
HELPER_LOG("%s l %d s1 %" PRIx64 " s2 %" PRIx64 "\n",
__func__, l, s1, s2);
+
for (i = 0; i <= l; i++) {
- x = cpu_ldub_data(env, s1 + i);
- y = cpu_ldub_data(env, s2 + i);
+ uint8_t x = cpu_ldub_data_ra(env, s1 + i, ra);
+ uint8_t y = cpu_ldub_data_ra(env, s2 + i, ra);
HELPER_LOG("%02x (%c)/%02x (%c) ", x, x, y, y);
if (x < y) {
cc = 1;
- goto done;
+ break;
} else if (x > y) {
cc = 2;
- goto done;
+ break;
}
}
- cc = 0;
- done:
+
HELPER_LOG("\n");
return cc;
}
diff --git a/target/s390x/translate.c b/target/s390x/translate.c
index 66f3cd6..aefbc90 100644
--- a/target/s390x/translate.c
+++ b/target/s390x/translate.c
@@ -1903,7 +1903,6 @@ static ExitStatus op_clc(DisasContext *s, DisasOps *o)
tcg_gen_qemu_ld64(cc_dst, o->in2, get_mem_index(s));
break;
default:
- potential_page_fault(s);
vl = tcg_const_i32(l);
gen_helper_clc(cc_op, cpu_env, vl, o->addr1, o->in2);
tcg_temp_free_i32(vl);
--
2.9.4
- Re: [Qemu-devel] [PATCH 06/31] target/s390x: Use unwind data for helper_mvc, (continued)
- [Qemu-devel] [PATCH 09/31] target/s390x: Use unwind data for helper_srst, Richard Henderson, 2017/05/22
- [Qemu-devel] [PATCH 08/31] target/s390x: Use unwind data for helper_clm, Richard Henderson, 2017/05/22
- [Qemu-devel] [PATCH 10/31] target/s390x: Use unwind data for helper_clst, Richard Henderson, 2017/05/22
- [Qemu-devel] [PATCH 07/31] target/s390x: Use unwind data for helper_clc,
Richard Henderson <=
- [Qemu-devel] [PATCH 12/31] target/s390x: Use unwind data for helper_mvst, Richard Henderson, 2017/05/22
- [Qemu-devel] [PATCH 13/31] target/s390x: Use unwind data for helper_lam, Richard Henderson, 2017/05/22
- [Qemu-devel] [PATCH 11/31] target/s390x: Use unwind data for helper_mvpg, Richard Henderson, 2017/05/22