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The following testcase ICEs in cross to riscv64-linux. The problem is that we have a DImode integral constant (that doesn't fit into SImode), which is pushed into a constant pool and later access just the first half of it using a MEM. When plus_constant is called on such a MEM, if the constant has mode, we verify the mode, but if it doesn't, we don't and ICE later on when we think the CONST_INT is a valid SImode constant. 2020-03-03 Jakub Jelinek <jakub@redhat.com> PR rtl-optimization/94002 * explow.c (plus_constant): Punt if cst has VOIDmode and get_pool_mode is different from mode. * gcc.dg/pr94002.c: New test.
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