; RUN: llc < %s -march=x86-64 | FileCheck %s declare void @bar() define void @test1(i32* nocapture %X) nounwind { entry: %tmp1 = load i32* %X, align 4 %and = and i32 %tmp1, 255 %cmp = icmp eq i32 %and, 47 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void ; CHECK-LABEL: test1: ; CHECK: cmpb $47, (%{{rdi|rcx}}) } define void @test2(i32 %X) nounwind { entry: %and = and i32 %X, 255 %cmp = icmp eq i32 %and, 47 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void ; CHECK-LABEL: test2: ; CHECK: cmpb $47, %{{dil|cl}} } define void @test3(i32 %X) nounwind { entry: %and = and i32 %X, 255 %cmp = icmp eq i32 %and, 255 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void ; CHECK-LABEL: test3: ; CHECK: cmpb $-1, %{{dil|cl}} } ; PR16083 define i1 @test4(i64 %a, i32 %b) { entry: %tobool = icmp ne i32 %b, 0 br i1 %tobool, label %lor.end, label %lor.rhs lor.rhs: ; preds = %entry %and = and i64 0, %a %tobool1 = icmp ne i64 %and, 0 br label %lor.end lor.end: ; preds = %lor.rhs, %entry %p = phi i1 [ true, %entry ], [ %tobool1, %lor.rhs ] ret i1 %p } @x = global { i8, i8, i8, i8, i8, i8, i8, i8 } { i8 1, i8 0, i8 0, i8 0, i8 1, i8 0, i8 0, i8 1 }, align 4 ; PR16551 define void @test5(i32 %X) nounwind { entry: %bf.load = load i56* bitcast ({ i8, i8, i8, i8, i8, i8, i8, i8 }* @x to i56*), align 4 %bf.lshr = lshr i56 %bf.load, 32 %bf.cast = trunc i56 %bf.lshr to i32 %cmp = icmp ne i32 %bf.cast, 1 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void ; CHECK-LABEL: test5: ; CHECK-NOT: cmpl $1,{{.*}}x+4 ; CHECK: ret }