; LLVM IR from Xingyu-Lin/softgym :: PyFlex/core/perlin.ll (Z8Perlin1Dfif)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress uwtable
define dso_local noundef float @_Z8Perlin1Dfif(float noundef %0, i32 noundef %1, float noundef %2) #0 {
  %4 = alloca float, align 4
  %5 = alloca i32, align 4
  %6 = alloca float, align 4
  %7 = alloca float, align 4
  %8 = alloca float, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca float, align 4
  store float %0, ptr %4, align 4, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store float %2, ptr %6, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store float 0.000000e+00, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store float 1.000000e+00, ptr %8, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 1, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %32, %3
  %13 = load i32, ptr %10, align 4, !tbaa !9
  %14 = load i32, ptr %5, align 4, !tbaa !9
  %15 = icmp slt i32 %13, %14
  br i1 %15, label %17, label %16

16:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  br label %35

17:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #3
  %18 = load float, ptr %4, align 4, !tbaa !5
  %19 = load i32, ptr %9, align 4, !tbaa !9
  %20 = sitofp i32 %19 to float
  %21 = fmul float %18, %20
  store float %21, ptr %11, align 4, !tbaa !5
  %22 = load float, ptr %11, align 4, !tbaa !5
  %23 = call noundef float @_ZN6PerlinL21PerlinNoise1DFunctionEf(float noundef %22)
  %24 = load float, ptr %8, align 4, !tbaa !5
  %25 = load float, ptr %7, align 4, !tbaa !5
  %26 = call float @llvm.fmuladd.f32(float %23, float %24, float %25)
  store float %26, ptr %7, align 4, !tbaa !5
  %27 = load float, ptr %6, align 4, !tbaa !5
  %28 = load float, ptr %8, align 4, !tbaa !5
  %29 = fmul float %28, %27
  store float %29, ptr %8, align 4, !tbaa !5
  %30 = load i32, ptr %10, align 4, !tbaa !9
  %31 = shl i32 2, %30
  store i32 %31, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #3
  br label %32

32:                                               ; preds = %17
  %33 = load i32, ptr %10, align 4, !tbaa !9
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %10, align 4, !tbaa !9
  br label %12, !llvm.loop !11

35:                                               ; preds = %16
  %36 = load float, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  ret float %36
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress uwtable
declare hidden noundef float @_ZN6PerlinL21PerlinNoise1DFunctionEf(float noundef) #0

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; Function Attrs: mustprogress uwtable
define dso_local noundef float @_Z8Perlin1Dfif(float noundef %0, i32 noundef %1, float noundef %2) local_unnamed_addr #0 {
  %4 = icmp sgt i32 %1, 0
  br i1 %4, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %3
  %.0.lcssa = phi float [ 0.000000e+00, %3 ], [ %8, %.lr.ph ]
  ret float %.0.lcssa

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.017 = phi float [ %8, %.lr.ph ], [ 0.000000e+00, %3 ]
  %.01116 = phi i32 [ %11, %.lr.ph ], [ 0, %3 ]
  %.01215 = phi i32 [ %10, %.lr.ph ], [ 1, %3 ]
  %.01314 = phi float [ %9, %.lr.ph ], [ 1.000000e+00, %3 ]
  %5 = sitofp i32 %.01215 to float
  %6 = fmul float %5, %0
  %7 = tail call noundef float @_ZN6PerlinL21PerlinNoise1DFunctionEf(float noundef %6)
  %8 = tail call float @llvm.fmuladd.f32(float %7, float %.01314, float %.017)
  %9 = fmul float %.01314, %2
  %10 = shl i32 2, %.01116
  %11 = add nuw nsw i32 %.01116, 1
  %exitcond.not = icmp eq i32 %11, %1
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

; Function Attrs: mustprogress uwtable
declare hidden noundef float @_ZN6PerlinL21PerlinNoise1DFunctionEf(float noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #1

attributes #0 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass