https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98568
Bug ID: 98568 Summary: [11 regression] ICE in verify_gimple() during GIMPLE pass: store-merging Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: dimhen at gmail dot com Target Milestone: --- r11-6442 PASS r11-6475 FAIL $ cat x.i char a[2]; void c() { int b; a[1] = b >> 8; a[0] = b; } // creduced from openssl-1.1.0/ssl/s3_cbc.c $ ~/arch-gcc/r11-6475/bin/gcc -fpreprocessed -O3 -c x.i x.i: In function 'c': x.i:2:6: error: conversion of register to a different size in 'view_convert_expr' 2 | void c() | ^ VIEW_CONVERT_EXPR<vector(2) char>(b_4(D)); _12 = VIEW_CONVERT_EXPR<vector(2) char>(b_4(D)); during GIMPLE pass: store-merging x.i:2:6: internal compiler error: verify_gimple failed 0x10420ba verify_gimple_in_cfg(function*, bool) /home/dimhen/src/gcc_current/gcc/tree-cfg.c:5467 0xef8497 execute_function_todo /home/dimhen/src/gcc_current/gcc/passes.c:2042 0xef8ebb execute_todo /home/dimhen/src/gcc_current/gcc/passes.c:2096 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.