1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc -mtriple=armv8.6a-none-none-eabi < %s | FileCheck %s --check-prefixes=CHECK 3; RUN: llc -mtriple=armv8.6a-none-none-eabi -mattr=+bf16,+neon < %s | FileCheck %s --check-prefixes=CHECK 4; RUN: llc -mtriple=armv8.6a-none-none-eabi -mattr=+bf16,+neon,+fullfp16 < %s | FileCheck %s --check-prefix=CHECK-FP16 5; RUN: llc -mtriple=armv8.6a-none-none-eabi -mattr=+bf16,+neon -float-abi=hard < %s | FileCheck %s --check-prefix=CHECK-HARD 6 7define bfloat @bitcast_zero() { 8; CHECK-LABEL: bitcast_zero: 9; CHECK: @ %bb.0: 10; CHECK-NEXT: .pad #4 11; CHECK-NEXT: sub sp, sp, #4 12; CHECK-NEXT: mov r0, #0 13; CHECK-NEXT: strh r0, [sp, #2] 14; CHECK-NEXT: ldrh r0, [sp, #2] 15; CHECK-NEXT: add sp, sp, #4 16; CHECK-NEXT: bx lr 17; 18; CHECK-FP16-LABEL: bitcast_zero: 19; CHECK-FP16: @ %bb.0: 20; CHECK-FP16-NEXT: mov r0, #0 21; CHECK-FP16-NEXT: vmov.f16 s0, r0 22; CHECK-FP16-NEXT: vmov r0, s0 23; CHECK-FP16-NEXT: bx lr 24; 25; CHECK-HARD-LABEL: bitcast_zero: 26; CHECK-HARD: @ %bb.0: 27; CHECK-HARD-NEXT: .pad #4 28; CHECK-HARD-NEXT: sub sp, sp, #4 29; CHECK-HARD-NEXT: mov r0, #0 30; CHECK-HARD-NEXT: strh r0, [sp, #2] 31; CHECK-HARD-NEXT: ldrh r0, [sp, #2] 32; CHECK-HARD-NEXT: vmov s0, r0 33; CHECK-HARD-NEXT: add sp, sp, #4 34; CHECK-HARD-NEXT: bx lr 35 %z = bitcast i16 0 to bfloat 36 ret bfloat %z 37} 38 39define bfloat @zero() { 40; CHECK-LABEL: zero: 41; CHECK: @ %bb.0: 42; CHECK-NEXT: adr r0, .LCPI1_0 43; CHECK-NEXT: ldrh r0, [r0] 44; CHECK-NEXT: bx lr 45; CHECK-NEXT: .p2align 1 46; CHECK-NEXT: @ %bb.1: 47; CHECK-NEXT: .LCPI1_0: 48; CHECK-NEXT: .short 0x0000 @ bfloat 0 49; 50; CHECK-FP16-LABEL: zero: 51; CHECK-FP16: @ %bb.0: 52; CHECK-FP16-NEXT: vldr.16 s0, .LCPI1_0 53; CHECK-FP16-NEXT: vmov r0, s0 54; CHECK-FP16-NEXT: bx lr 55; CHECK-FP16-NEXT: .p2align 1 56; CHECK-FP16-NEXT: @ %bb.1: 57; CHECK-FP16-NEXT: .LCPI1_0: 58; CHECK-FP16-NEXT: .short 0x0000 @ bfloat 0 59; 60; CHECK-HARD-LABEL: zero: 61; CHECK-HARD: @ %bb.0: 62; CHECK-HARD-NEXT: adr r0, .LCPI1_0 63; CHECK-HARD-NEXT: ldrh r0, [r0] 64; CHECK-HARD-NEXT: vmov s0, r0 65; CHECK-HARD-NEXT: bx lr 66; CHECK-HARD-NEXT: .p2align 1 67; CHECK-HARD-NEXT: @ %bb.1: 68; CHECK-HARD-NEXT: .LCPI1_0: 69; CHECK-HARD-NEXT: .short 0x0000 @ bfloat 0 70 ret bfloat 0xR0000 71} 72 73define bfloat @bitcast_tenk() { 74; CHECK-LABEL: bitcast_tenk: 75; CHECK: @ %bb.0: 76; CHECK-NEXT: .pad #4 77; CHECK-NEXT: sub sp, sp, #4 78; CHECK-NEXT: movw r0, #10000 79; CHECK-NEXT: strh r0, [sp, #2] 80; CHECK-NEXT: ldrh r0, [sp, #2] 81; CHECK-NEXT: add sp, sp, #4 82; CHECK-NEXT: bx lr 83; 84; CHECK-FP16-LABEL: bitcast_tenk: 85; CHECK-FP16: @ %bb.0: 86; CHECK-FP16-NEXT: movw r0, #10000 87; CHECK-FP16-NEXT: vmov.f16 s0, r0 88; CHECK-FP16-NEXT: vmov r0, s0 89; CHECK-FP16-NEXT: bx lr 90; 91; CHECK-HARD-LABEL: bitcast_tenk: 92; CHECK-HARD: @ %bb.0: 93; CHECK-HARD-NEXT: .pad #4 94; CHECK-HARD-NEXT: sub sp, sp, #4 95; CHECK-HARD-NEXT: movw r0, #10000 96; CHECK-HARD-NEXT: strh r0, [sp, #2] 97; CHECK-HARD-NEXT: ldrh r0, [sp, #2] 98; CHECK-HARD-NEXT: vmov s0, r0 99; CHECK-HARD-NEXT: add sp, sp, #4 100; CHECK-HARD-NEXT: bx lr 101 %z = bitcast i16 10000 to bfloat 102 ret bfloat %z 103} 104 105define bfloat @minus0() { 106; CHECK-LABEL: minus0: 107; CHECK: @ %bb.0: 108; CHECK-NEXT: adr r0, .LCPI3_0 109; CHECK-NEXT: ldrh r0, [r0] 110; CHECK-NEXT: bx lr 111; CHECK-NEXT: .p2align 1 112; CHECK-NEXT: @ %bb.1: 113; CHECK-NEXT: .LCPI3_0: 114; CHECK-NEXT: .short 0x8000 @ bfloat -0 115; 116; CHECK-FP16-LABEL: minus0: 117; CHECK-FP16: @ %bb.0: 118; CHECK-FP16-NEXT: vldr.16 s0, .LCPI3_0 119; CHECK-FP16-NEXT: vmov r0, s0 120; CHECK-FP16-NEXT: bx lr 121; CHECK-FP16-NEXT: .p2align 1 122; CHECK-FP16-NEXT: @ %bb.1: 123; CHECK-FP16-NEXT: .LCPI3_0: 124; CHECK-FP16-NEXT: .short 0x8000 @ bfloat -0 125; 126; CHECK-HARD-LABEL: minus0: 127; CHECK-HARD: @ %bb.0: 128; CHECK-HARD-NEXT: adr r0, .LCPI3_0 129; CHECK-HARD-NEXT: ldrh r0, [r0] 130; CHECK-HARD-NEXT: vmov s0, r0 131; CHECK-HARD-NEXT: bx lr 132; CHECK-HARD-NEXT: .p2align 1 133; CHECK-HARD-NEXT: @ %bb.1: 134; CHECK-HARD-NEXT: .LCPI3_0: 135; CHECK-HARD-NEXT: .short 0x8000 @ bfloat -0 136 ret bfloat 0xR8000 137} 138