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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug rtl-optimization/105231] [12 Regression] ICE: in
 rtl_verify_bb_insns, at cfgrtl.cc:2797 (flow control insn inside a basic
 block) with custom flags since r12-4767-g81342e95827f77c0
Date: Tue, 12 Apr 2022 11:27:29 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105231

--- Comment #17 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
For the testcase, again no reason for -fsanitize=3Dthread,
void baz (int *);
void bar (double, double, _Decimal64);

void
foo (void)
{
  int s __attribute__((cleanup (baz)));
  bar (0xfffffffffffffffe, 0xebf3fff2fbebaf7f, 0xffffffffffffff);
}

will ICE even with just
-Os -fsanitize-coverage=3Dtrace-pc -fnon-call-exceptions --param=3Dmax-cse-=
insns=3D1
-frounding-math -mstack-arg-probe -m32=