Hi All, I believe PR101750 to be a testism. The reduced case accesses h[0] but h is uninitialized and so the changes added in r12-2523 makes the compiler realize this and replaces the code with a trap.
This fixes the case by just making the variable static. regtested on aarch64-none-linux-gnu and no issues. Ok for master? Thanks, Tamar gcc/testsuite/ChangeLog: PR tree-optimization/101750 * g++.dg/vect/pr99149.cc: Fix access of h. --- inline copy of patch -- diff --git a/gcc/testsuite/g++.dg/vect/pr99149.cc b/gcc/testsuite/g++.dg/vect/pr99149.cc index 00ebe9d9cdf600ada8e66b4b854f0e18ad0b6a7d..4b885a5d432130d5eff3e96c833ec6c97de3e95d 100755 --- a/gcc/testsuite/g++.dg/vect/pr99149.cc +++ b/gcc/testsuite/g++.dg/vect/pr99149.cc @@ -11,8 +11,8 @@ public: a operator*(a d) { return a(b * b - c * c, b * c + c * d.b); } }; int f, g; -class { - a *h; +class mp { + static a *h; a *i; public: --
diff --git a/gcc/testsuite/g++.dg/vect/pr99149.cc b/gcc/testsuite/g++.dg/vect/pr99149.cc index 00ebe9d9cdf600ada8e66b4b854f0e18ad0b6a7d..4b885a5d432130d5eff3e96c833ec6c97de3e95d 100755 --- a/gcc/testsuite/g++.dg/vect/pr99149.cc +++ b/gcc/testsuite/g++.dg/vect/pr99149.cc @@ -11,8 +11,8 @@ public: a operator*(a d) { return a(b * b - c * c, b * c + c * d.b); } }; int f, g; -class { - a *h; +class mp { + static a *h; a *i; public: