; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 ; RUN: llc -mtriple=aarch64 < %s | FileCheck %s define void @bool_ne_1(ptr %p) { ; CHECK-LABEL: bool_ne_1: ; CHECK: // %bb.0: ; CHECK-NEXT: ldrb w8, [x0] ; CHECK-NEXT: cbnz w8, .LBB0_2 ; CHECK-NEXT: // %bb.1: // %if.else ; CHECK-NEXT: b bar ; CHECK-NEXT: .LBB0_2: // %if.then ; CHECK-NEXT: b foo %v = load i8, ptr %p, align 1, !range !0, !noundef !1 %cmp = icmp ne i8 %v, 1 br i1 %cmp, label %if.else, label %if.then if.then: tail call void @foo() ret void if.else: tail call void @bar() ret void } define void @bool_ne_1_with_memcpy(ptr %this, ptr %v) { ; CHECK-LABEL: bool_ne_1_with_memcpy: ; CHECK: // %bb.0: ; CHECK-NEXT: ldrb w8, [x0, #40] ; CHECK-NEXT: ldr q0, [x1] ; CHECK-NEXT: str q0, [x0] ; CHECK-NEXT: cbz w8, .LBB1_2 ; CHECK-NEXT: // %bb.1: // %if.then ; CHECK-NEXT: b foo ; CHECK-NEXT: .LBB1_2: // %if.else ; CHECK-NEXT: b bar %engaged = getelementptr inbounds nuw i8, ptr %this, i64 40 %val = load i8, ptr %engaged, align 8, !range !0, !noundef !1 %loadedv = trunc nuw i8 %val to i1 tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 8 dereferenceable(40) %this, ptr noundef nonnull align 8 dereferenceable(40) %v, i64 16, i1 false) br i1 %loadedv, label %if.then, label %if.else if.then: tail call void @foo() ret void if.else: tail call void @bar() ret void } define void @bool_eq_1(ptr %p) { ; CHECK-LABEL: bool_eq_1: ; CHECK: // %bb.0: ; CHECK-NEXT: ldrb w8, [x0] ; CHECK-NEXT: cbz w8, .LBB2_2 ; CHECK-NEXT: // %bb.1: // %if.then ; CHECK-NEXT: b foo ; CHECK-NEXT: .LBB2_2: // %if.else ; CHECK-NEXT: b bar %v = load i8, ptr %p, align 1, !range !0, !noundef !1 %cmp = icmp eq i8 %v, 1 br i1 %cmp, label %if.then, label %if.else if.then: tail call void @foo() ret void if.else: tail call void @bar() ret void } define void @bool_ne_1_i32(ptr %p) { ; CHECK-LABEL: bool_ne_1_i32: ; CHECK: // %bb.0: ; CHECK-NEXT: ldr w8, [x0] ; CHECK-NEXT: cbnz w8, .LBB3_2 ; CHECK-NEXT: // %bb.1: // %if.else ; CHECK-NEXT: b bar ; CHECK-NEXT: .LBB3_2: // %if.then ; CHECK-NEXT: b foo %v = load i32, ptr %p, align 4, !range !2, !noundef !1 %cmp = icmp ne i32 %v, 1 br i1 %cmp, label %if.else, label %if.then if.then: tail call void @foo() ret void if.else: tail call void @bar() ret void } define void @bool_eq_1_i32(ptr %p) { ; CHECK-LABEL: bool_eq_1_i32: ; CHECK: // %bb.0: ; CHECK-NEXT: ldr w8, [x0] ; CHECK-NEXT: cbz w8, .LBB4_2 ; CHECK-NEXT: // %bb.1: // %if.then ; CHECK-NEXT: b foo ; CHECK-NEXT: .LBB4_2: // %if.else ; CHECK-NEXT: b bar %v = load i32, ptr %p, align 4, !range !2, !noundef !1 %cmp = icmp eq i32 %v, 1 br i1 %cmp, label %if.then, label %if.else if.then: tail call void @foo() ret void if.else: tail call void @bar() ret void } ; Negative test: value not in [0, 1] define void @not_bool_ne_1(ptr %p) { ; CHECK-LABEL: not_bool_ne_1: ; CHECK: // %bb.0: ; CHECK-NEXT: ldrb w8, [x0] ; CHECK-NEXT: cmp w8, #1 ; CHECK-NEXT: b.eq .LBB5_2 ; CHECK-NEXT: // %bb.1: // %if.then ; CHECK-NEXT: b foo ; CHECK-NEXT: .LBB5_2: // %if.else ; CHECK-NEXT: b bar %v = load i8, ptr %p, align 1 %cmp = icmp ne i8 %v, 1 br i1 %cmp, label %if.then, label %if.else if.then: tail call void @foo() ret void if.else: tail call void @bar() ret void } ; Negative test: conjunction tree should use CCMP chain, not CBZ. define void @conjunction_ccmp(ptr %x_ptr, ptr %y_ptr, ptr %z_ptr) { ; CHECK-LABEL: conjunction_ccmp: ; CHECK: // %bb.0: ; CHECK-NEXT: ldrh w8, [x1] ; CHECK-NEXT: ldr w9, [x0] ; CHECK-NEXT: cmp w8, #10 ; CHECK-NEXT: ccmp w9, #0, #0, ne ; CHECK-NEXT: ccmp w8, #14, #4, ne ; CHECK-NEXT: b.eq .LBB6_2 ; CHECK-NEXT: // %bb.1: // %if.then ; CHECK-NEXT: str wzr, [x2] ; CHECK-NEXT: .LBB6_2: // %common.ret ; CHECK-NEXT: ret %x = load i32, ptr %x_ptr, align 4 %cmp1 = icmp ne i32 %x, 0 %y = load i16, ptr %y_ptr, align 2 %cmp2 = icmp eq i16 %y, 10 %or1 = select i1 %cmp1, i1 true, i1 %cmp2 %cmp3 = icmp ne i16 %y, 14 %or2 = select i1 %or1, i1 %cmp3, i1 false br i1 %or2, label %if.then, label %if.else if.then: store i32 0, ptr %z_ptr, align 8 ret void if.else: ret void } ; Negative test: overflow result should use direct flag-consuming branch define void @overflow_bool(i32 %a, i32 %b) { ; CHECK-LABEL: overflow_bool: ; CHECK: // %bb.0: ; CHECK-NEXT: cmn w0, w1 ; CHECK-NEXT: b.vc .LBB7_2 ; CHECK-NEXT: // %bb.1: // %if.then ; CHECK-NEXT: b foo ; CHECK-NEXT: .LBB7_2: // %if.else ; CHECK-NEXT: b bar %res = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %a, i32 %b) %ov = extractvalue {i32, i1} %res, 1 br i1 %ov, label %if.then, label %if.else if.then: tail call void @foo() ret void if.else: tail call void @bar() ret void } declare void @foo() declare void @bar() declare void @llvm.memcpy.p0.p0.i64(ptr, ptr, i64, i1) !0 = !{i8 0, i8 2} !1 = !{} !2 = !{i32 0, i32 2}