1 ; RUN: llc -mtriple=armv7a--none-eabi < %s | FileCheck --check-prefix=CHECK --check-prefix=CHECK-HARDFLOAT-EABI %s 2 ; RUN: llc -mtriple=armv7a--none-gnueabi < %s | FileCheck --check-prefix=CHECK --check-prefix=CHECK-HARDFLOAT-GNU %s 3 ; RUN: llc -mattr=+vfp3,+fp16 < %s | FileCheck --check-prefix=CHECK --check-prefix=CHECK-FP16 %s 4 ; RUN: llc -mtriple=armv8-eabihf < %s | FileCheck --check-prefix=CHECK --check-prefix=CHECK-ARMV8 %s 5 ; RUN: llc -mtriple=thumbv7m-eabi < %s | FileCheck --check-prefix=CHECK --check-prefix=CHECK-SOFTFLOAT-EABI %s 6 ; RUN: llc -mtriple=thumbv7m-gnueabi < %s | FileCheck --check-prefix=CHECK --check-prefix=CHECK-SOFTFLOAT-GNU %s 7 8 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n32" 9 target triple = "armv7---eabihf" 10 11 @x = global i16 12902 12 @y = global i16 0 13 @z = common global i16 0 14 15 define void @foo() nounwind { 16 ; CHECK-LABEL: foo: 17 entry: 18 %0 = load i16, i16* @x, align 2 19 %1 = load i16, i16* @y, align 2 20 %2 = tail call float @llvm.convert.from.fp16.f32(i16 %0) 21 ; CHECK-HARDFLOAT-EABI: __aeabi_h2f 22 ; CHECK-HARDFLOAT-GNU: __gnu_h2f_ieee 23 ; CHECK-FP16: vcvtb.f32.f16 24 ; CHECK-ARMv8: vcvtb.f32.f16 25 ; CHECK-SOFTFLOAT-EABI: __aeabi_h2f 26 ; CHECK-SOFTFLOAT-GNU: __gnu_h2f_ieee 27 %3 = tail call float @llvm.convert.from.fp16.f32(i16 %1) 28 ; CHECK-HARDFLOAT-EABI: __aeabi_h2f 29 ; CHECK-HARDFLOAT-GNU: __gnu_h2f_ieee 30 ; CHECK-FP16: vcvtb.f32.f16 31 ; CHECK-ARMV8: vcvtb.f32.f16 32 ; CHECK-SOFTFLOAT-EABI: __aeabi_h2f 33 ; CHECK-SOFTFLOAT-GNU: __gnu_h2f_ieee 34 %4 = fadd float %2, %3 35 %5 = tail call i16 @llvm.convert.to.fp16.f32(float %4) 36 ; CHECK-HARDFLOAT-EABI: __aeabi_f2h 37 ; CHECK-HARDFLOAT-GNU: __gnu_f2h_ieee 38 ; CHECK-FP16: vcvtb.f16.f32 39 ; CHECK-ARMV8: vcvtb.f16.f32 40 ; CHECK-SOFTFLOAT-EABI: __aeabi_f2h 41 ; CHECK-SOFTFLOAT-GNU: __gnu_f2h_ieee 42 store i16 %5, i16* @x, align 2 43 ret void 44 } 45 46 define double @test_from_fp16(i16 %in) { 47 ; CHECK-LABEL: test_from_fp16: 48 %val = call double @llvm.convert.from.fp16.f64(i16 %in) 49 ; CHECK-HARDFLOAT-EABI: bl __aeabi_h2f 50 ; CHECK-HARDFLOAT-EABI: vmov [[TMP:s[0-9]+]], r0 51 ; CHECK-HARDFLOAT-EABI: vcvt.f64.f32 {{d[0-9]+}}, [[TMP]] 52 53 ; CHECK-HARDFLOAT-GNU: bl __gnu_h2f_ieee 54 ; CHECK-HARDFLOAT-GNU: vmov [[TMP:s[0-9]+]], r0 55 ; CHECK-HARDFLOAT-GNU: vcvt.f64.f32 {{d[0-9]+}}, [[TMP]] 56 57 ; CHECK-FP16: vmov [[TMP16:s[0-9]+]], r0 58 ; CHECK-FP16: vcvtb.f32.f16 [[TMP32:s[0-9]+]], [[TMP16]] 59 ; CHECK-FP16: vcvt.f64.f32 d0, [[TMP32]] 60 61 ; CHECK-ARMV8: vmov [[TMP:s[0-9]+]], r0 62 ; CHECK-ARMV8: vcvtb.f64.f16 d0, [[TMP]] 63 64 ; CHECK-SOFTFLOAT-EABI: bl __aeabi_h2f 65 ; CHECK-SOFTFLOAT-EABI: bl __aeabi_f2d 66 67 ; CHECK-SOFTFLOAT-GNU: bl __gnu_h2f_ieee 68 ; CHECK-SOFTFLOAT-GNU: bl __aeabi_f2d 69 ret double %val 70 } 71 72 define i16 @test_to_fp16(double %in) { 73 ; CHECK-LABEL: test_to_fp16: 74 %val = call i16 @llvm.convert.to.fp16.f64(double %in) 75 ; CHECK-HARDFLOAT-EABI: bl __aeabi_d2h 76 77 ; CHECK-HARDFLOAT-GNU: bl __aeabi_d2h 78 79 ; CHECK-FP16: bl __aeabi_d2h 80 81 ; CHECK-ARMV8: vcvtb.f16.f64 [[TMP:s[0-9]+]], d0 82 ; CHECK-ARMV8: vmov r0, [[TMP]] 83 84 ; CHECK-SOFTFLOAT-EABI: bl __aeabi_d2h 85 86 ; CHECK-SOFTFLOAT-GNU: bl __aeabi_d2h 87 ret i16 %val 88 } 89 90 declare float @llvm.convert.from.fp16.f32(i16) nounwind readnone 91 declare double @llvm.convert.from.fp16.f64(i16) nounwind readnone 92 93 declare i16 @llvm.convert.to.fp16.f32(float) nounwind readnone 94 declare i16 @llvm.convert.to.fp16.f64(double) nounwind readnone 95
