Hi! I've noticed that standard_sse_constant_opcode emits some spurious whitespace around tab, that isn't something which is done for any other instruction and looks wrong.
Bootstrapped/regtested on x86_64-linux and i686-linux, committed to trunk as obvious. 2023-06-13 Jakub Jelinek <ja...@redhat.com> * config/i386/i386.cc (standard_sse_constant_opcode): Remove superfluous spaces around \t for vpcmpeqd. --- gcc/config/i386/i386.cc.jj 2023-06-12 15:47:21.855511203 +0200 +++ gcc/config/i386/i386.cc 2023-06-13 14:33:49.940464312 +0200 @@ -5358,19 +5358,19 @@ standard_sse_constant_opcode (rtx_insn * if (GET_MODE_SIZE (mode) == 64) { gcc_assert (TARGET_AVX512F); - return "vpcmpeqd \t %t0, %t0, %t0"; + return "vpcmpeqd\t%t0, %t0, %t0"; } else if (GET_MODE_SIZE (mode) == 32) { gcc_assert (TARGET_AVX); - return "vpcmpeqd \t %x0, %x0, %x0"; + return "vpcmpeqd\t%x0, %x0, %x0"; } gcc_unreachable (); } else if (vector_all_ones_zero_extend_quarter_operand (x, mode)) { gcc_assert (TARGET_AVX512F); - return "vpcmpeqd \t %x0, %x0, %x0"; + return "vpcmpeqd\t%x0, %x0, %x0"; } gcc_unreachable (); Jakub