From: Matthias Kretz <m.kretz@gsi.de>
Date: Thu, 25 May 2023 08:45:21 +0000 (+0200)
Subject: libstdc++: Resolve -Wsign-compare issue
X-Git-Tag: vendors/ARM/release-12.3.rel1~67
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7c184ac708535c808df04a8ec074c934c971f9c4;p=thirdparty%2Fgcc.git

libstdc++: Resolve -Wsign-compare issue

Signed-off-by: Matthias Kretz <m.kretz@gsi.de>

libstdc++-v3/ChangeLog:

	* include/experimental/bits/simd_ppc.h (_S_bit_shift_left):
	Negative __y is UB, so prefer signed compare.

(cherry picked from commit 1a1abec1d618cde709c585fcce89330bb33b07ac)
---

diff --git a/libstdc++-v3/include/experimental/bits/simd_ppc.h b/libstdc++-v3/include/experimental/bits/simd_ppc.h
index 484814e9a3ae..b9a0d3fdffa5 100644
--- a/libstdc++-v3/include/experimental/bits/simd_ppc.h
+++ b/libstdc++-v3/include/experimental/bits/simd_ppc.h
@@ -64,7 +64,7 @@ template <typename _Abi, typename>
 	__x = _Base::_S_bit_shift_left(__x, __y);
 	if constexpr (sizeof(_Tp) < sizeof(int))
 	  {
-	    if (__y >= sizeof(_Tp) * __CHAR_BIT__)
+	    if (__y >= int(sizeof(_Tp) * __CHAR_BIT__))
 	      return {};
 	  }
 	return __x;