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Date: Mon, 29 Jan 2024 15:04:55 +0100
From: Szabolcs Nagy <nsz@...t70.net>
To: musl@...ts.openwall.com
Subject: [PATCH] math: fix static const initializer in sqrtl
A static const value cannot be used in a static const initializer,
simply use const instead.
This seems to matter for gcc-7 and older with -O0 and for gcc-4.4 and
older with optimization.
verified that with gcc-12 on aarch64 the generated code is unchanged.
---
src/math/sqrtl.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/math/sqrtl.c b/src/math/sqrtl.c
index 1b9f19c7..a231b3f2 100644
--- a/src/math/sqrtl.c
+++ b/src/math/sqrtl.c
@@ -205,7 +205,7 @@ long double sqrtl(long double x)
top = (top + 0x3fff) >> 1;
/* r ~ 1/sqrt(m) */
- static const uint64_t three = 0xc0000000;
+ const uint64_t three = 0xc0000000;
uint64_t r, s, d, u, i;
i = (ix.hi >> 42) % 128;
r = (uint32_t)__rsqrt_tab[i] << 16;
@@ -227,7 +227,7 @@ long double sqrtl(long double x)
r = mul64(u, r) << 1;
/* |r sqrt(m) - 1| < 0x1.c001p-59, switch to 128bit */
- static const u128 threel = {.hi=three<<32, .lo=0};
+ const u128 threel = {.hi=three<<32, .lo=0};
u128 rl, sl, dl, ul;
rl.hi = r;
rl.lo = 0;
--
2.43.0
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