On 2/12/21 4:21 PM, Peter Bergner wrote: > rtl-optimization: Fix uninitialized use of opaque mode variable ICE [PR98872] > > The initialize_uninitialized_regs function emits (set (reg:) (CONST0_RTX)) > for all uninitialized pseudo uses. However, some modes (eg, opaque modes) > may not have a CONST0_RTX defined, leading to an ICE when we try and create > the initialization insn. The fix is to skip emitting the initialization > if there is no CONST0_RTX defined for the mode. > > This following patch fixes the ICE and is currently regtesting. > Ok for trunk if the bootstrap and regtesting come back clean? > > Peter > > > 2021-02-12 Peter Bergner <berg...@linux.ibm.com> > > gcc/ > PR rtl-optimization/98872 > * init-regs.c (initialize_uninitialized_regs): Skip initialization > if CONST0_RTX is NULL. > > gcc/testsuite/ > PR rtl-optimization/98872 > * gcc.target/powerpc/pr98872.c: New test.
Testing came back clean with no regressions. Peter
