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