cc539138ac
The standard libcalls for half to float and float to half conversion are __extendhfsf2 and __truncsfhf2. However, LLVM currently uses __gnu_h2f_ieee and __gnu_f2h_ieee instead. As far as I can tell, these libcalls are an ARM-ism and only provided by libgcc on that platform. compiler-rt always provides both libcalls. Use the standard libcalls by default, and only use the __gnu libcalls on ARM.
40 lines
1.3 KiB
LLVM
40 lines
1.3 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc -mcpu=pwr8 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
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; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s
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; RUN: llc -mcpu=pwr9 -ppc-asm-full-reg-names -ppc-vsr-nums-as-vr \
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; RUN: -mtriple=powerpc64le-unknown-unknown < %s | FileCheck %s \
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; RUN: -check-prefix=CHECK-P9
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define dso_local half @test2(i64 %a, i64 %b) local_unnamed_addr #0 {
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; CHECK-LABEL: test2:
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; CHECK: # %bb.0: # %entry
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; CHECK-NEXT: mflr r0
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; CHECK-NEXT: stdu r1, -32(r1)
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; CHECK-NEXT: add r3, r4, r3
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; CHECK-NEXT: std r0, 48(r1)
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; CHECK-NEXT: addi r3, r3, 11
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; CHECK-NEXT: clrlwi r3, r3, 16
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; CHECK-NEXT: bl __extendhfsf2
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; CHECK-NEXT: nop
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; CHECK-NEXT: addi r1, r1, 32
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; CHECK-NEXT: ld r0, 16(r1)
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; CHECK-NEXT: mtlr r0
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; CHECK-NEXT: blr
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;
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; CHECK-P9-LABEL: test2:
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; CHECK-P9: # %bb.0: # %entry
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; CHECK-P9-NEXT: add r3, r4, r3
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; CHECK-P9-NEXT: addi r3, r3, 11
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; CHECK-P9-NEXT: clrlwi r3, r3, 16
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; CHECK-P9-NEXT: mtfprwz f0, r3
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; CHECK-P9-NEXT: xscvhpdp f1, f0
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; CHECK-P9-NEXT: blr
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entry:
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%add = add i64 %b, %a
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%0 = trunc i64 %add to i16
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%conv = add i16 %0, 11
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%call = bitcast i16 %conv to half
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ret half %call
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}
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attributes #0 = { nounwind }
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