; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc < %s -mtriple=x86_64-linux | FileCheck %s declare void @bar() define void @test1(i32* nocapture %X) nounwind minsize { ; CHECK-LABEL: test1: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $47, (%rdi) ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %tmp1 = load i32, 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 } define void @test2(i32 %X) nounwind minsize { ; CHECK-LABEL: test2: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $47, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq 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 } define void @test3(i32 %X) nounwind minsize { ; CHECK-LABEL: test3: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $-1, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq 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 } ; PR16083 define i1 @test4(i64 %a, i32 %b) { ; CHECK-LABEL: test4: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movb $1, %al ; CHECK-NEXT: testl %esi, %esi ; CHECK-NEXT: je .LBB3_1 ; CHECK-NEXT: # %bb.2: # %lor.end ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB3_1: # %lor.rhs ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: # kill: def $al killed $al killed $eax ; CHECK-NEXT: retq 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 minsize { ; CHECK-LABEL: test5: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movzbl x+{{.*}}(%rip), %eax ; CHECK-NEXT: shll $16, %eax ; CHECK-NEXT: movzwl x+{{.*}}(%rip), %ecx ; CHECK-NEXT: orl %eax, %ecx ; CHECK-NEXT: cmpl $1, %ecx ; CHECK-NEXT: jne bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %bf.load = load i56, 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 } define void @test2_1(i32 %X) nounwind minsize { ; CHECK-LABEL: test2_1: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movzbl %dil, %eax ; CHECK-NEXT: cmpl $256, %eax # imm = 0x100 ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %and = and i32 %X, 255 %cmp = icmp eq i32 %and, 256 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void } define void @test_sext_i8_icmp_1(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_1: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $1, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, 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 } define void @test_sext_i8_icmp_47(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_47: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $47, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, 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 } define void @test_sext_i8_icmp_127(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_127: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $127, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, 127 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void } define void @test_sext_i8_icmp_neg1(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_neg1: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $-1, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, -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 } define void @test_sext_i8_icmp_neg2(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_neg2: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $-2, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, -2 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void } define void @test_sext_i8_icmp_neg127(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_neg127: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $-127, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, -127 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void } define void @test_sext_i8_icmp_neg128(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_neg128: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpb $-128, %dil ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, -128 br i1 %cmp, label %if.then, label %if.end if.then: tail call void @bar() nounwind br label %if.end if.end: ret void } define void @test_sext_i8_icmp_255(i8 %x) nounwind minsize { ; CHECK-LABEL: test_sext_i8_icmp_255: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: movb $1, %al ; CHECK-NEXT: testb %al, %al ; CHECK-NEXT: je bar # TAILCALL ; CHECK-NEXT: # %bb.1: # %if.end ; CHECK-NEXT: retq entry: %sext = sext i8 %x to i32 %cmp = icmp eq i32 %sext, 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 }