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

package info (click to toggle)
swiftlang 6.1.3-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 2,791,604 kB
  • sloc: cpp: 9,901,740; ansic: 2,201,431; asm: 1,091,827; python: 308,252; objc: 82,166; f90: 80,126; lisp: 38,358; pascal: 25,559; sh: 20,429; ml: 5,058; perl: 4,745; makefile: 4,484; awk: 3,535; javascript: 3,018; xml: 918; fortran: 664; cs: 573; ruby: 396
file content (32 lines) | stat: -rw-r--r-- 869 bytes parent folder | download | duplicates (25) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
; 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" }