File: fp-elim-and-no-fp-elim.ll

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llvm-toolchain-11 1%3A11.0.1-2
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; RUN: llc < %s -mtriple x86_64-apple-darwin | FileCheck %s

define void @bar(i32 %argc) #0 {
; CHECK-LABEL: bar:
; CHECK: pushq %rbp
entry:
  %conv = sitofp i32 %argc to double
  %mul = fmul double %conv, 3.792700e+01
  %conv1 = fptrunc double %mul to float
  %div = fdiv double 9.273700e+02, %conv
  %conv3 = fptrunc double %div to float
  tail call void @foo(float %conv1, float %conv3)
  ret void
}

define void @qux(i32 %argc) #1 {
; CHECK-LABEL: qux:
; CHECK-NOT: pushq %rbp
entry:
  %conv = sitofp i32 %argc to double
  %mul = fmul double %conv, 3.792700e+01
  %conv1 = fptrunc double %mul to float
  %div = fdiv double 9.273700e+02, %conv
  %conv3 = fptrunc double %div to float
  tail call void @foo(float %conv1, float %conv3)
  ret void
}

declare void @foo(float, float)

attributes #0 = { "frame-pointer"="all" }
attributes #1 = { "frame-pointer"="none" }