File: clamp.ll

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8~deb9u3
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (22 lines) | stat: -rw-r--r-- 757 bytes parent folder | download | duplicates (15)
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 -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
}