From: Matthias Kretz <m.kretz@gsi.de>
Date: Thu, 25 May 2023 10:53:06 +0000 (+0200)
Subject: libstdc++: Simplify calculation of expected value in simd test
X-Git-Tag: basepoints/gcc-15~8731
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3e2689e568425f14d6728504ad6f5d32b90320ad;p=thirdparty%2Fgcc.git

libstdc++: Simplify calculation of expected value in simd test

This avoids a failure on PR109964.

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

libstdc++-v3/ChangeLog:

	* testsuite/experimental/simd/tests/integer_operators.cc:
	Compute expected value differently to avoid getting turned into
	a vector shift.
---

diff --git a/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc b/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc
index 7a2bc085e498..08ad49ca7108 100644
--- a/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc
+++ b/libstdc++-v3/testsuite/experimental/simd/tests/integer_operators.cc
@@ -179,11 +179,10 @@ template <typename V>
 	  for (int j = 0; j < 100; ++j)
 	    {
 	      const V seq([&](auto i) -> T { return (j + i) % n_promo_bits; });
-	      COMPARE(V(1) >> seq, V([&](auto i) { return T(T(1) >> seq[i]); }))
-		<< "seq = " << seq;
-	      COMPARE(make_value_unknown(V(1)) >> make_value_unknown(seq),
-		V([&](auto i) { return T(T(1) >> seq[i]); }))
-		<< "seq = " << seq;
+	      const V expect([&](auto i) { return seq[i] == 0 ? T(1) : T(0); });
+	      COMPARE(V(1) >> seq, expect) << "\nseq = " << seq;
+	      COMPARE(make_value_unknown(V(1)) >> make_value_unknown(seq), expect)
+		<< "\nseq = " << seq;
 	    }
 	  for_constexpr<int, 0, n_promo_bits - 1>([](auto shift_ic) {
 	    constexpr int shift = shift_ic;