File: apint-ipsccp4.ll

package info (click to toggle)
llvm 2.2-12
  • links: PTS, VCS
  • area: main
  • in suites: lenny
  • size: 38,648 kB
  • ctags: 28,258
  • sloc: cpp: 215,479; sh: 12,132; ansic: 10,002; yacc: 5,525; perl: 2,352; ml: 1,580; makefile: 956; pascal: 718; lex: 602; exp: 320; ada: 193; lisp: 160; csh: 116; objc: 59; python: 59; tcl: 20
file content (49 lines) | stat: -rw-r--r-- 1,093 bytes parent folder | download
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
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
; This test makes sure that these instructions are properly constant propagated.

; RUN: llvm-as < %s | opt -ipsccp | llvm-dis | not grep load
; RUN: llvm-as < %s | opt -ipsccp | llvm-dis | not grep add
; RUN: llvm-as < %s | opt -ipsccp | llvm-dis | not grep phi


@Y = constant [2 x { i212, float }] [ { i212, float } { i212 12, float 1.0 }, 
                                     { i212, float } { i212 37, float 2.0 } ]

define internal float @test2() {
	%A = getelementptr [2 x { i212, float}]* @Y, i32 0, i32 1, i32 1
	%B = load float* %A
	ret float %B
}

define internal float  @test3() {
	%A = getelementptr [2 x { i212, float}]* @Y, i32 0, i32 0, i32 1
	%B = load float* %A
	ret float %B
}

define internal float @test()
{
   %A = call float @test2()
   %B = call float @test3()

   %E = fdiv float %B, %A
   ret float %E
}

define float @All()
{
  %A = call float @test()
  %B = fcmp oge float %A, 1.0
  br i1 %B, label %T, label %F
T:
  %C = add float %A, 1.0
  br label %exit
F:
  %D = add float %A, 2.0
  br label %exit
exit:
  %E = phi float [%C, %T], [%D, %F]
  ret float %E
}