perl/perl-5.30.0-pp.c-Add-two-UNLIKELY-s.patch

43 lines
1.1 KiB
Diff

From 4f0ded009bf6de2da6a2a2022bec03576dcb80ca Mon Sep 17 00:00:00 2001
From: Karl Williamson <khw@cpan.org>
Date: Wed, 1 May 2019 10:41:38 -0600
Subject: [PATCH] pp.c: Add two UNLIKELY()s
MIME-Version: 1.0
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It should be uncommon to shift beyond a full word
Signed-off-by: Ported to 5.30.0 from
bae047b68c92622bb4bb04499e36cdaa48138909.
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
pp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/pp.c b/pp.c
index 90db3a0..7afb090 100644
--- a/pp.c
+++ b/pp.c
@@ -1979,7 +1979,7 @@ static UV S_uv_shift(UV uv, int shift, bool left)
shift = -shift;
left = !left;
}
- if (shift >= IV_BITS) {
+ if (UNLIKELY(shift >= IV_BITS)) {
return 0;
}
return left ? uv << shift : uv >> shift;
@@ -1991,7 +1991,7 @@ static IV S_iv_shift(IV iv, int shift, bool left)
shift = -shift;
left = !left;
}
- if (shift >= IV_BITS) {
+ if (UNLIKELY(shift >= IV_BITS)) {
return iv < 0 && !left ? -1 : 0;
}
return left ? iv << shift : iv >> shift;
--
2.20.1