| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py |
| ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+f16c < %s | FileCheck %s --check-prefix=ALL --check-prefix=F16C |
| ; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+avx < %s | FileCheck %s --check-prefix=ALL --check-prefix=AVX |
| |
| define zeroext i16 @test1_fast(double %d) #0 { |
| ; F16C-LABEL: test1_fast: |
| ; F16C: # %bb.0: # %entry |
| ; F16C-NEXT: vcvtsd2ss %xmm0, %xmm0, %xmm0 |
| ; F16C-NEXT: vcvtps2ph $4, %xmm0, %xmm0 |
| ; F16C-NEXT: vmovd %xmm0, %eax |
| ; F16C-NEXT: # kill: def $ax killed $ax killed $eax |
| ; F16C-NEXT: retq |
| ; |
| ; AVX-LABEL: test1_fast: |
| ; AVX: # %bb.0: # %entry |
| ; AVX-NEXT: pushq %rax |
| ; AVX-NEXT: .cfi_def_cfa_offset 16 |
| ; AVX-NEXT: callq __truncdfhf2@PLT |
| ; AVX-NEXT: popq %rcx |
| ; AVX-NEXT: .cfi_def_cfa_offset 8 |
| ; AVX-NEXT: retq |
| entry: |
| %0 = tail call i16 @llvm.convert.to.fp16.f64(double %d) |
| ret i16 %0 |
| } |
| |
| define zeroext i16 @test2_fast(x86_fp80 %d) #0 { |
| ; F16C-LABEL: test2_fast: |
| ; F16C: # %bb.0: # %entry |
| ; F16C-NEXT: fldt {{[0-9]+}}(%rsp) |
| ; F16C-NEXT: fstps -{{[0-9]+}}(%rsp) |
| ; F16C-NEXT: vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero |
| ; F16C-NEXT: vcvtps2ph $4, %xmm0, %xmm0 |
| ; F16C-NEXT: vmovd %xmm0, %eax |
| ; F16C-NEXT: # kill: def $ax killed $ax killed $eax |
| ; F16C-NEXT: retq |
| ; |
| ; AVX-LABEL: test2_fast: |
| ; AVX: # %bb.0: # %entry |
| ; AVX-NEXT: subq $24, %rsp |
| ; AVX-NEXT: .cfi_def_cfa_offset 32 |
| ; AVX-NEXT: fldt {{[0-9]+}}(%rsp) |
| ; AVX-NEXT: fstpt (%rsp) |
| ; AVX-NEXT: callq __truncxfhf2@PLT |
| ; AVX-NEXT: addq $24, %rsp |
| ; AVX-NEXT: .cfi_def_cfa_offset 8 |
| ; AVX-NEXT: retq |
| entry: |
| %0 = tail call i16 @llvm.convert.to.fp16.f80(x86_fp80 %d) |
| ret i16 %0 |
| } |
| |
| define zeroext i16 @test1(double %d) #1 { |
| ; ALL-LABEL: test1: |
| ; ALL: # %bb.0: # %entry |
| ; ALL-NEXT: pushq %rax |
| ; ALL-NEXT: .cfi_def_cfa_offset 16 |
| ; ALL-NEXT: callq __truncdfhf2@PLT |
| ; ALL-NEXT: popq %rcx |
| ; ALL-NEXT: .cfi_def_cfa_offset 8 |
| ; ALL-NEXT: retq |
| entry: |
| %0 = tail call i16 @llvm.convert.to.fp16.f64(double %d) |
| ret i16 %0 |
| } |
| |
| define zeroext i16 @test2(x86_fp80 %d) #1 { |
| ; ALL-LABEL: test2: |
| ; ALL: # %bb.0: # %entry |
| ; ALL-NEXT: subq $24, %rsp |
| ; ALL-NEXT: .cfi_def_cfa_offset 32 |
| ; ALL-NEXT: fldt {{[0-9]+}}(%rsp) |
| ; ALL-NEXT: fstpt (%rsp) |
| ; ALL-NEXT: callq __truncxfhf2@PLT |
| ; ALL-NEXT: addq $24, %rsp |
| ; ALL-NEXT: .cfi_def_cfa_offset 8 |
| ; ALL-NEXT: retq |
| entry: |
| %0 = tail call i16 @llvm.convert.to.fp16.f80(x86_fp80 %d) |
| ret i16 %0 |
| } |
| |
| declare i16 @llvm.convert.to.fp16.f64(double) |
| declare i16 @llvm.convert.to.fp16.f80(x86_fp80) |
| |
| attributes #0 = { nounwind readnone uwtable "unsafe-fp-math"="true" "use-soft-float"="false" } |
| attributes #1 = { nounwind readnone uwtable "unsafe-fp-math"="false" "use-soft-float"="false" } |