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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=aarch64-apple-darwin | FileCheck %s3 4declare i16 @llvm.bswap.i16(i16)5declare i32 @llvm.bswap.i32(i32)6declare i64 @llvm.bswap.i64(i64)7 8define i1 @test1(i16 %arg) {9; CHECK-LABEL: test1:10; CHECK: ; %bb.0:11; CHECK-NEXT: mov w0, #112; CHECK-NEXT: ret13 %a = or i16 %arg, 51114 %b = call i16 @llvm.bswap.i16(i16 %a)15 %and = and i16 %b, 25616 %res = icmp eq i16 %and, 25617 ret i1 %res18}19 20define i1 @test2(i16 %arg) {21; CHECK-LABEL: test2:22; CHECK: ; %bb.0:23; CHECK-NEXT: mov w0, #124; CHECK-NEXT: ret25 %a = or i16 %arg, 126 %b = call i16 @llvm.bswap.i16(i16 %a)27 %and = and i16 %b, 25628 %res = icmp eq i16 %and, 25629 ret i1 %res30}31 32define i1 @test3(i16 %arg) {33; CHECK-LABEL: test3:34; CHECK: ; %bb.0:35; CHECK-NEXT: mov w0, #136; CHECK-NEXT: ret37 %a = or i16 %arg, 25638 %b = call i16 @llvm.bswap.i16(i16 %a)39 %and = and i16 %b, 140 %res = icmp eq i16 %and, 141 ret i1 %res42}43 44define i1 @test4(i32 %arg) {45; CHECK-LABEL: test4:46; CHECK: ; %bb.0:47; CHECK-NEXT: mov w0, #148; CHECK-NEXT: ret49 %a = or i32 %arg, 2147483647 ; i32_MAX50 %b = call i32 @llvm.bswap.i32(i32 %a)51 %and = and i32 %b, 12752 %res = icmp eq i32 %and, 12753 ret i1 %res54}55 56define i8 @demand_one_byte0(i32 %x) {57; CHECK-LABEL: demand_one_byte0:58; CHECK: ; %bb.0:59; CHECK-NEXT: rev w0, w060; CHECK-NEXT: ret61 %b = call i32 @llvm.bswap.i32(i32 %x)62 %r = trunc i32 %b to i863 ret i8 %r64}65 66define i32 @demand_one_byte1(i32 %x) {67; CHECK-LABEL: demand_one_byte1:68; CHECK: ; %bb.0:69; CHECK-NEXT: lsr w8, w0, #870; CHECK-NEXT: and w0, w8, #0xff0071; CHECK-NEXT: ret72 %b = call i32 @llvm.bswap.i32(i32 %x)73 %r = and i32 %b, 65280 ; 0x0000ff0074 ret i32 %r75}76 77define i32 @demand_one_byte2(i32 %x) {78; CHECK-LABEL: demand_one_byte2:79; CHECK: ; %bb.0:80; CHECK-NEXT: lsl w8, w0, #881; CHECK-NEXT: orr w0, w8, #0xff00ffff82; CHECK-NEXT: ret83 %b = call i32 @llvm.bswap.i32(i32 %x)84 %r = or i32 %b, 4278255615 ; 0xff00ffff85 ret i32 %r86}87 88define i64 @demand_one_byte3(i64 %x) {89; CHECK-LABEL: demand_one_byte3:90; CHECK: ; %bb.0:91; CHECK-NEXT: and x0, x0, #0xff92; CHECK-NEXT: ret93 %b = call i64 @llvm.bswap.i64(i64 %x)94 %r = lshr i64 %b, 5695 ret i64 %r96}97 98define void @demand_one_loaded_byte(ptr %xp, ptr %yp) {99; CHECK-LABEL: demand_one_loaded_byte:100; CHECK: ; %bb.0:101; CHECK-NEXT: ldrb w8, [x0, #4]102; CHECK-NEXT: strb w8, [x1]103; CHECK-NEXT: ret104 %x = load i64, ptr %xp, align 8105 %x_zzzz7654 = lshr i64 %x, 32106 %x_z7654zzz = shl nuw nsw i64 %x_zzzz7654, 24107 %x_4zzz = trunc i64 %x_z7654zzz to i32108 %y = load i32, ptr %yp, align 4109 %y_321z = and i32 %y, -256110 %x_zzz4 = call i32 @llvm.bswap.i32(i32 %x_4zzz)111 %r = or i32 %x_zzz4, %y_321z112 store i32 %r, ptr %yp, align 4113 ret void114}115