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[PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=may
From: |
Eric Auger |
Subject: |
[PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized |
Date: |
Wed, 7 Dec 2022 14:24:39 +0100 |
Initialize r0-3 to avoid compilation errors when
-Werror=maybe-uninitialized is used
../target/i386/ops_sse.h: In function ‘helper_vpermdq_ymm’:
../target/i386/ops_sse.h:2495:13: error: ‘r3’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
2495 | d->Q(3) = r3;
| ~~~~~~~~^~~~
../target/i386/ops_sse.h:2494:13: error: ‘r2’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
2494 | d->Q(2) = r2;
| ~~~~~~~~^~~~
../target/i386/ops_sse.h:2493:13: error: ‘r1’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
2493 | d->Q(1) = r1;
| ~~~~~~~~^~~~
../target/i386/ops_sse.h:2492:13: error: ‘r0’ may be used uninitialized in this
function [-Werror=maybe-uninitialized]
2492 | d->Q(0) = r0;
| ~~~~~~~~^~~~
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Fixes: 790684776861 ("target/i386: reimplement 0x0f 0x3a, add AVX")
---
Am I the only one getting this? Or anything wrong in my setup.
---
target/i386/ops_sse.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/i386/ops_sse.h b/target/i386/ops_sse.h
index 3cbc36a59d..b77071b8da 100644
--- a/target/i386/ops_sse.h
+++ b/target/i386/ops_sse.h
@@ -2451,7 +2451,7 @@ void glue(helper_vpgatherqq, SUFFIX)(CPUX86State *env,
#if SHIFT >= 2
void helper_vpermdq_ymm(Reg *d, Reg *v, Reg *s, uint32_t order)
{
- uint64_t r0, r1, r2, r3;
+ uint64_t r0 = 0, r1 = 0, r2 = 0, r3 = 0;
switch (order & 3) {
case 0:
--
2.37.3
- [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized,
Eric Auger <=
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Eric Auger, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Stefan Hajnoczi, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Eric Auger, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Stefan Hajnoczi, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Eric Auger, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Richard Henderson, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Eric Auger, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Peter Maydell, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Eric Auger, 2022/12/07
- Re: [PATCH for 7.2?] target/i386: Remove compilation errors when -Werror=maybe-uninitialized, Philippe Mathieu-Daudé, 2022/12/07