File: clamp.ll

package info (click to toggle)
llvm-toolchain-13 1%3A13.0.1-6~deb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,418,812 kB
  • sloc: cpp: 5,290,827; ansic: 996,570; asm: 544,593; python: 188,212; objc: 72,027; lisp: 30,291; f90: 25,395; sh: 24,900; javascript: 9,780; pascal: 9,398; perl: 7,484; ml: 5,432; awk: 3,523; makefile: 2,892; xml: 953; cs: 573; fortran: 539
file content (22 lines) | stat: -rw-r--r-- 801 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s

define float @clamp(float %a, float %b, float %c) {
; CHECK-LABEL: @clamp
; CHECK:  %cmp = fcmp ogt float %a, %c
; CHECK:  %cmp1 = fcmp olt float %a, %b
; CHECK:  %cond = select i1 %cmp1, float %b, float %a
; CHECK:  %cond5 = select i1 %cmp, float %c, float %cond
; CHECK:  ret float %cond5
entry:
  %cmp = fcmp ogt float %a, %c
  br i1 %cmp, label %cond.end4, label %cond.false

cond.false:                                       ; preds = %entry
  %cmp1 = fcmp olt float %a, %b
  %cond = select i1 %cmp1, float %b, float %a
  br label %cond.end4

cond.end4:                                        ; preds = %entry, %cond.false
  %cond5 = phi float [ %cond, %cond.false ], [ %c, %entry ]
  ret float %cond5
}