[llvm-bugs] [Bug 45237] Assertion failed: (!IsStrict && "Don't know how to expand for strict nodes."), function ExpandNode, file llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp, line 3638.

via llvm-bugs llvm-bugs at lists.llvm.org
Sat Apr 18 04:01:37 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=45237

Piotr Kubaj <pkubaj at anongoth.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |---
             Status|RESOLVED                    |REOPENED

--- Comment #3 from Piotr Kubaj <pkubaj at anongoth.pl> ---
This issue wasn't completely fixed. babl builds on powerpc64 now, but I
discovered clang exiting with the same assert on powerpc, while building
x11/babl as well.

Reduced test case:
double a;
b() {
  if (a)
    ;
}

Compile with:
/usr/bin/cc -cc1 -triple powerpc-unknown-freebsd13.0 -emit-obj
-ffp-exception-behavior=strict model-cmyk-61260b.c

Compiling the same test case for powerpc64 and powerpcspe also makes clang fail
on the same assertion.

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