79 lines
3.1 KiB
LLVM
79 lines
3.1 KiB
LLVM
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; ModuleID = 'sqrt.c'
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source_filename = "sqrt.c"
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-linux-gnu"
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; Function Attrs: mustprogress nofree norecurse nosync nounwind readnone sspstrong uwtable willreturn
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define dso_local float @fabs(float %0) local_unnamed_addr #0 {
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%2 = fcmp olt float %0, 0.000000e+00
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%3 = fneg float %0
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%4 = select i1 %2, float %3, float %0
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ret float %4
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}
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; Function Attrs: nofree nosync nounwind readnone sspstrong uwtable
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define dso_local float @sqrtfcn(float %0) local_unnamed_addr #1 {
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%2 = fcmp oeq float %0, 0.000000e+00
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br i1 %2, label %30, label %3
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3: ; preds = %1
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%4 = fdiv float %0, 1.000000e+01
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br label %5
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5: ; preds = %3, %25
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%6 = phi i32 [ 0, %3 ], [ %27, %25 ]
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%7 = phi i32 [ 1, %3 ], [ %28, %25 ]
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%8 = phi float [ %4, %3 ], [ %26, %25 ]
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%9 = icmp eq i32 %6, 0
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br i1 %9, label %10, label %25
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10: ; preds = %5
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%11 = fmul float %8, %8
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%12 = fsub float %0, %11
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%13 = fpext float %12 to double
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%14 = fpext float %8 to double
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%15 = fmul double %14, 2.000000e+00
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%16 = fdiv double %13, %15
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%17 = fptrunc double %16 to float
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%18 = fadd float %8, %17
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%19 = fmul float %18, %18
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%20 = fsub float %0, %19
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%21 = call float @llvm.fabs.f32(float %20)
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%22 = fpext float %21 to double
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%23 = fcmp ugt double %22, 1.000000e-05
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br i1 %23, label %25, label %24
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24: ; preds = %10
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br label %25
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25: ; preds = %24, %10, %5
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%26 = phi float [ %8, %5 ], [ %18, %24 ], [ %18, %10 ]
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%27 = phi i32 [ 1, %5 ], [ 1, %24 ], [ 0, %10 ]
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%28 = add nuw nsw i32 %7, 1
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%29 = icmp eq i32 %28, 20
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br i1 %29, label %30, label %5, !llvm.loop !5
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30: ; preds = %25, %1
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%31 = phi float [ 0.000000e+00, %1 ], [ %26, %25 ]
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ret float %31
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}
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; Function Attrs: nofree nosync nounwind readnone speculatable willreturn
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declare float @llvm.fabs.f32(float) #2
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attributes #0 = { mustprogress nofree norecurse nosync nounwind readnone sspstrong uwtable willreturn "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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attributes #1 = { nofree nosync nounwind readnone sspstrong uwtable "frame-pointer"="none" "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
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attributes #2 = { nofree nosync nounwind readnone speculatable willreturn }
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!llvm.module.flags = !{!0, !1, !2, !3}
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!llvm.ident = !{!4}
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!0 = !{i32 1, !"wchar_size", i32 4}
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!1 = !{i32 7, !"PIC Level", i32 2}
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!2 = !{i32 7, !"PIE Level", i32 2}
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!3 = !{i32 7, !"uwtable", i32 1}
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!4 = !{!"clang version 13.0.1"}
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!5 = distinct !{!5, !6, !7}
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!6 = !{!"llvm.loop.mustprogress"}
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!7 = !{!"llvm.loop.unroll.disable"}
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