diff options
Diffstat (limited to 'toolchain/musl/patches/048-math-fix-pow-signed-shift-ub.patch')
| -rw-r--r-- | toolchain/musl/patches/048-math-fix-pow-signed-shift-ub.patch | 38 |
1 files changed, 0 insertions, 38 deletions
diff --git a/toolchain/musl/patches/048-math-fix-pow-signed-shift-ub.patch b/toolchain/musl/patches/048-math-fix-pow-signed-shift-ub.patch deleted file mode 100644 index fde857b..0000000 --- a/toolchain/musl/patches/048-math-fix-pow-signed-shift-ub.patch +++ /dev/null @@ -1,38 +0,0 @@ -From 688d3da0f1730daddbc954bbc2d27cc96ceee04c Mon Sep 17 00:00:00 2001 -From: Szabolcs Nagy <nsz@port70.net> -Date: Tue, 4 Oct 2016 03:58:56 +0200 -Subject: math: fix pow signed shift ub - -j is int32_t and thus j<<31 is undefined if j==1, so j is changed to -uint32_t locally as a quick fix, the generated code is not affected. - -(this is a strict conformance fix, future c standard may allow 1<<31, -see DR 463. the bug was inherited from freebsd fdlibm, the proper fix -is to use uint32_t for all bit hacks, but that requires more intrusive -changes.) - -reported by Daniel Sabogal ---- - src/math/pow.c | 4 ++-- - 1 file changed, 2 insertions(+), 2 deletions(-) - -diff --git a/src/math/pow.c b/src/math/pow.c -index b66f632..3ddc1b6 100644 ---- a/src/math/pow.c -+++ b/src/math/pow.c -@@ -125,11 +125,11 @@ double pow(double x, double y) - else if (iy >= 0x3ff00000) { - k = (iy>>20) - 0x3ff; /* exponent */ - if (k > 20) { -- j = ly>>(52-k); -+ uint32_t j = ly>>(52-k); - if ((j<<(52-k)) == ly) - yisint = 2 - (j&1); - } else if (ly == 0) { -- j = iy>>(20-k); -+ uint32_t j = iy>>(20-k); - if ((j<<(20-k)) == iy) - yisint = 2 - (j&1); - } --- -cgit v0.11.2 |