1 ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+f16c < %s | FileCheck %s --check-prefix=ALL --check-prefix=F16C 2 ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx < %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX 3 4 define zeroext i16 @test1_fast(double %d) #0 { 5 ; ALL-LABEL: test1_fast: 6 ; F16C-NOT: callq {{_+}}truncdfhf2 7 ; F16C: vcvtsd2ss %xmm0, %xmm0, %xmm0 8 ; F16C-NEXT: vcvtps2ph $0, %xmm0, %xmm0 9 ; AVX: callq {{_+}}truncdfhf2 10 ; ALL: ret 11 entry: 12 %0 = tail call i16 @llvm.convert.to.fp16.f64(double %d) 13 ret i16 %0 14 } 15 16 define zeroext i16 @test2_fast(x86_fp80 %d) #0 { 17 ; ALL-LABEL: test2_fast: 18 ; F16C-NOT: callq {{_+}}truncxfhf2 19 ; F16C: fldt 20 ; F16C-NEXT: fstps 21 ; F16C-NEXT: vmovss 22 ; F16C-NEXT: vcvtps2ph $0, %xmm0, %xmm0 23 ; AVX: callq {{_+}}truncxfhf2 24 ; ALL: ret 25 entry: 26 %0 = tail call i16 @llvm.convert.to.fp16.f80(x86_fp80 %d) 27 ret i16 %0 28 } 29 30 define zeroext i16 @test1(double %d) #1 { 31 ; ALL-LABEL: test1: 32 ; ALL: callq {{_+}}truncdfhf2 33 ; ALL: ret 34 entry: 35 %0 = tail call i16 @llvm.convert.to.fp16.f64(double %d) 36 ret i16 %0 37 } 38 39 define zeroext i16 @test2(x86_fp80 %d) #1 { 40 ; ALL-LABEL: test2: 41 ; ALL: callq {{_+}}truncxfhf2 42 ; ALL: ret 43 entry: 44 %0 = tail call i16 @llvm.convert.to.fp16.f80(x86_fp80 %d) 45 ret i16 %0 46 } 47 48 declare i16 @llvm.convert.to.fp16.f64(double) 49 declare i16 @llvm.convert.to.fp16.f80(x86_fp80) 50 51 attributes #0 = { nounwind readnone uwtable "unsafe-fp-math"="true" "use-soft-float"="false" } 52 attributes #1 = { nounwind readnone uwtable "unsafe-fp-math"="false" "use-soft-float"="false" } 53
