1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 2; REQUIRES: asserts 3; RUN: llc < %s -mtriple=x86_64-- -debug-counter=dagcombine=0 | FileCheck %s 4 5; BUG: shrinkAndImmediate folds away the AND after the ZEXT has already been folded away to SUBREG_TO_REG losing implicit zext. 6define i64 @test() { 7; CHECK-LABEL: test: 8; CHECK: # %bb.0: 9; CHECK-NEXT: movabsq $-4294967295, %rax # imm = 0xFFFFFFFF00000001 10; CHECK-NEXT: movzwl %ax, %eax 11; CHECK-NEXT: retq 12 %x = bitcast i64 u0xffffffff00000001 to i64 13 %t = trunc i64 %x to i32 14 %a = and i32 %t, 1 15 %e = zext i32 %a to i64 16 ret i64 %e 17} 18