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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc -mtriple=aarch64-unknown-linux-gnu < %s | FileCheck %s3 4; https://bugs.llvm.org/show_bug.cgi?id=371045 6; X: [bit 3210]7; Y: [bit 7654]8 9define i8 @out8_constmask(i8 %x, i8 %y) {10; CHECK-LABEL: out8_constmask:11; CHECK: // %bb.0:12; CHECK-NEXT: bfxil w1, w0, #0, #413; CHECK-NEXT: mov w0, w114; CHECK-NEXT: ret15 %mx = and i8 %x, 1516 %my = and i8 %y, -1617 %r = or i8 %mx, %my18 ret i8 %r19}20 21define i16 @out16_constmask(i16 %x, i16 %y) {22; CHECK-LABEL: out16_constmask:23; CHECK: // %bb.0:24; CHECK-NEXT: mov w8, #3855 // =0xf0f25; CHECK-NEXT: mov w9, #-3856 // =0xfffff0f026; CHECK-NEXT: and w8, w0, w827; CHECK-NEXT: and w9, w1, w928; CHECK-NEXT: orr w0, w8, w929; CHECK-NEXT: ret30 %mx = and i16 %x, 385531 %my = and i16 %y, -385632 %r = or i16 %mx, %my33 ret i16 %r34}35 36define i32 @out32_constmask(i32 %x, i32 %y) {37; CHECK-LABEL: out32_constmask:38; CHECK: // %bb.0:39; CHECK-NEXT: and w8, w0, #0xf0f0f0f40; CHECK-NEXT: and w9, w1, #0xf0f0f0f041; CHECK-NEXT: orr w0, w8, w942; CHECK-NEXT: ret43 %mx = and i32 %x, 25264513544 %my = and i32 %y, -25264513645 %r = or i32 %mx, %my46 ret i32 %r47}48 49define i64 @out64_constmask(i64 %x, i64 %y) {50; CHECK-LABEL: out64_constmask:51; CHECK: // %bb.0:52; CHECK-NEXT: and x8, x0, #0xf0f0f0f0f0f0f0f53; CHECK-NEXT: and x9, x1, #0xf0f0f0f0f0f0f0f054; CHECK-NEXT: orr x0, x8, x955; CHECK-NEXT: ret56 %mx = and i64 %x, 108510259257115009557 %my = and i64 %y, -108510259257115009658 %r = or i64 %mx, %my59 ret i64 %r60}61 62;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;63; Should be the same as the previous one.64;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;65 66define i8 @in8_constmask(i8 %x, i8 %y) {67; CHECK-LABEL: in8_constmask:68; CHECK: // %bb.0:69; CHECK-NEXT: eor w8, w0, w170; CHECK-NEXT: and w8, w8, #0xf71; CHECK-NEXT: eor w0, w8, w172; CHECK-NEXT: ret73 %n0 = xor i8 %x, %y74 %n1 = and i8 %n0, 1575 %r = xor i8 %n1, %y76 ret i8 %r77}78 79define i16 @in16_constmask(i16 %x, i16 %y) {80; CHECK-LABEL: in16_constmask:81; CHECK: // %bb.0:82; CHECK-NEXT: mov w8, #3855 // =0xf0f83; CHECK-NEXT: eor w9, w0, w184; CHECK-NEXT: and w8, w9, w885; CHECK-NEXT: eor w0, w8, w186; CHECK-NEXT: ret87 %n0 = xor i16 %x, %y88 %n1 = and i16 %n0, 385589 %r = xor i16 %n1, %y90 ret i16 %r91}92 93define i32 @in32_constmask(i32 %x, i32 %y) {94; CHECK-LABEL: in32_constmask:95; CHECK: // %bb.0:96; CHECK-NEXT: eor w8, w0, w197; CHECK-NEXT: and w8, w8, #0xf0f0f0f98; CHECK-NEXT: eor w0, w8, w199; CHECK-NEXT: ret100 %n0 = xor i32 %x, %y101 %n1 = and i32 %n0, 252645135102 %r = xor i32 %n1, %y103 ret i32 %r104}105 106define i64 @in64_constmask(i64 %x, i64 %y) {107; CHECK-LABEL: in64_constmask:108; CHECK: // %bb.0:109; CHECK-NEXT: eor x8, x0, x1110; CHECK-NEXT: and x8, x8, #0xf0f0f0f0f0f0f0f111; CHECK-NEXT: eor x0, x8, x1112; CHECK-NEXT: ret113 %n0 = xor i64 %x, %y114 %n1 = and i64 %n0, 1085102592571150095115 %r = xor i64 %n1, %y116 ret i64 %r117}118 119; ============================================================================ ;120; Constant Commutativity tests.121; ============================================================================ ;122 123define i32 @in_constmask_commutativity_0_1(i32 %x, i32 %y) {124; CHECK-LABEL: in_constmask_commutativity_0_1:125; CHECK: // %bb.0:126; CHECK-NEXT: eor w8, w0, w1127; CHECK-NEXT: and w8, w8, #0xf0f0f0f128; CHECK-NEXT: eor w0, w1, w8129; CHECK-NEXT: ret130 %n0 = xor i32 %x, %y131 %n1 = and i32 %n0, 252645135132 %r = xor i32 %y, %n1 ; swapped133 ret i32 %r134}135 136define i32 @in_constmask_commutativity_1_0(i32 %x, i32 %y) {137; CHECK-LABEL: in_constmask_commutativity_1_0:138; CHECK: // %bb.0:139; CHECK-NEXT: eor w8, w0, w1140; CHECK-NEXT: and w8, w8, #0xf0f0f0f141; CHECK-NEXT: eor w0, w8, w0142; CHECK-NEXT: ret143 %n0 = xor i32 %x, %y144 %n1 = and i32 %n0, 252645135145 %r = xor i32 %n1, %x ; %x instead of %y146 ret i32 %r147}148 149define i32 @in_constmask_commutativity_1_1(i32 %x, i32 %y) {150; CHECK-LABEL: in_constmask_commutativity_1_1:151; CHECK: // %bb.0:152; CHECK-NEXT: eor w8, w0, w1153; CHECK-NEXT: and w8, w8, #0xf0f0f0f154; CHECK-NEXT: eor w0, w0, w8155; CHECK-NEXT: ret156 %n0 = xor i32 %x, %y157 %n1 = and i32 %n0, 252645135158 %r = xor i32 %x, %n1 ; swapped, %x instead of %y159 ret i32 %r160}161 162; ============================================================================ ;163; Y is an 'and' too.164; ============================================================================ ;165 166define i32 @in_complex_y0_constmask(i32 %x, i32 %y_hi, i32 %y_low) {167; CHECK-LABEL: in_complex_y0_constmask:168; CHECK: // %bb.0:169; CHECK-NEXT: and w8, w1, w2170; CHECK-NEXT: eor w9, w0, w8171; CHECK-NEXT: and w9, w9, #0xf0f0f0f172; CHECK-NEXT: eor w0, w9, w8173; CHECK-NEXT: ret174 %y = and i32 %y_hi, %y_low175 %n0 = xor i32 %x, %y176 %n1 = and i32 %n0, 252645135177 %r = xor i32 %n1, %y178 ret i32 %r179}180 181define i32 @in_complex_y1_constmask(i32 %x, i32 %y_hi, i32 %y_low) {182; CHECK-LABEL: in_complex_y1_constmask:183; CHECK: // %bb.0:184; CHECK-NEXT: and w8, w1, w2185; CHECK-NEXT: eor w9, w0, w8186; CHECK-NEXT: and w9, w9, #0xf0f0f0f187; CHECK-NEXT: eor w0, w8, w9188; CHECK-NEXT: ret189 %y = and i32 %y_hi, %y_low190 %n0 = xor i32 %x, %y191 %n1 = and i32 %n0, 252645135192 %r = xor i32 %y, %n1193 ret i32 %r194}195 196; ============================================================================ ;197; Negative tests. Should not be folded.198; ============================================================================ ;199 200; Multi-use tests.201 202declare void @use32(i32) nounwind203 204define i32 @in_multiuse_A_constmask(i32 %x, i32 %y, i32 %z) nounwind {205; CHECK-LABEL: in_multiuse_A_constmask:206; CHECK: // %bb.0:207; CHECK-NEXT: str x30, [sp, #-32]! // 8-byte Folded Spill208; CHECK-NEXT: eor w8, w0, w1209; CHECK-NEXT: stp x20, x19, [sp, #16] // 16-byte Folded Spill210; CHECK-NEXT: mov w19, w1211; CHECK-NEXT: and w20, w8, #0xf0f0f0f212; CHECK-NEXT: mov w0, w20213; CHECK-NEXT: bl use32214; CHECK-NEXT: eor w0, w20, w19215; CHECK-NEXT: ldp x20, x19, [sp, #16] // 16-byte Folded Reload216; CHECK-NEXT: ldr x30, [sp], #32 // 8-byte Folded Reload217; CHECK-NEXT: ret218 %n0 = xor i32 %x, %y219 %n1 = and i32 %n0, 252645135220 call void @use32(i32 %n1)221 %r = xor i32 %n1, %y222 ret i32 %r223}224 225define i32 @in_multiuse_B_constmask(i32 %x, i32 %y, i32 %z) nounwind {226; CHECK-LABEL: in_multiuse_B_constmask:227; CHECK: // %bb.0:228; CHECK-NEXT: str x30, [sp, #-32]! // 8-byte Folded Spill229; CHECK-NEXT: eor w0, w0, w1230; CHECK-NEXT: stp x20, x19, [sp, #16] // 16-byte Folded Spill231; CHECK-NEXT: mov w19, w1232; CHECK-NEXT: and w20, w0, #0xf0f0f0f233; CHECK-NEXT: bl use32234; CHECK-NEXT: eor w0, w20, w19235; CHECK-NEXT: ldp x20, x19, [sp, #16] // 16-byte Folded Reload236; CHECK-NEXT: ldr x30, [sp], #32 // 8-byte Folded Reload237; CHECK-NEXT: ret238 %n0 = xor i32 %x, %y239 %n1 = and i32 %n0, 252645135240 call void @use32(i32 %n0)241 %r = xor i32 %n1, %y242 ret i32 %r243}244 245; Various bad variants246 247define i32 @n0_badconstmask(i32 %x, i32 %y) {248; CHECK-LABEL: n0_badconstmask:249; CHECK: // %bb.0:250; CHECK-NEXT: mov w8, #61681 // =0xf0f1251; CHECK-NEXT: and w9, w0, #0xf0f0f0f252; CHECK-NEXT: movk w8, #61680, lsl #16253; CHECK-NEXT: and w8, w1, w8254; CHECK-NEXT: orr w0, w9, w8255; CHECK-NEXT: ret256 %mx = and i32 %x, 252645135257 %my = and i32 %y, -252645135 ; instead of -252645136258 %r = or i32 %mx, %my259 ret i32 %r260}261 262define i32 @n1_thirdvar_constmask(i32 %x, i32 %y, i32 %z) {263; CHECK-LABEL: n1_thirdvar_constmask:264; CHECK: // %bb.0:265; CHECK-NEXT: eor w8, w0, w1266; CHECK-NEXT: and w8, w8, #0xf0f0f0f267; CHECK-NEXT: eor w0, w8, w2268; CHECK-NEXT: ret269 %n0 = xor i32 %x, %y270 %n1 = and i32 %n0, 252645135271 %r = xor i32 %n1, %z ; instead of %y272 ret i32 %r273}274