; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 ; RUN: llc -mtriple=x86_64-- < %s | FileCheck %s ; It's not possible to directly or the two loads together, because this might ; propagate a poison value from the second load (which has !range but not ; !noundef). define i8 @test(ptr %p) { ; CHECK-LABEL: test: ; CHECK: # %bb.0: ; CHECK-NEXT: movzbl (%rdi), %eax ; CHECK-NEXT: orb 1(%rdi), %al ; CHECK-NEXT: setne %al ; CHECK-NEXT: addb %al, %al ; CHECK-NEXT: retq %v1 = load i8, ptr %p, align 4, !range !0, !noundef !{} %cmp1 = icmp ne i8 %v1, 0 %p2 = getelementptr inbounds i8, ptr %p, i64 1 %v2 = load i8, ptr %p2, align 1, !range !0 %cmp2 = icmp ne i8 %v2, 0 %or = select i1 %cmp1, i1 true, i1 %cmp2 %res = select i1 %or, i8 2, i8 0 ret i8 %res } !0 = !{i8 0, i8 2}