File: trip-count2.ll

package info (click to toggle)
llvm 2.6-9.1
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 57,604 kB
  • ctags: 44,336
  • sloc: cpp: 344,766; sh: 12,407; ansic: 10,617; ada: 3,070; ml: 2,505; perl: 2,496; makefile: 1,426; pascal: 1,163; exp: 389; asm: 307; python: 298; objc: 260; lisp: 182; csh: 117; xml: 38; f90: 36; tcl: 20
file content (35 lines) | stat: -rw-r--r-- 1,122 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
; RUN: llvm-as < %s | opt -analyze -scalar-evolution -disable-output | \
; RUN:   grep {backedge-taken count is 4}
; PR1101

@A = weak global [1000 x i32] zeroinitializer, align 32         


define void @test(i32 %N) {
entry:
        "alloca point" = bitcast i32 0 to i32           ; <i32> [#uses=0]
        br label %bb3

bb:             ; preds = %bb3
        %tmp = getelementptr [1000 x i32]* @A, i32 0, i32 %i.0          ; <i32*> [#uses=1]
        store i32 123, i32* %tmp
        %tmp4 = mul i32 %i.0, 4         ; <i32> [#uses=1]
        %tmp5 = or i32 %tmp4, 1
        %tmp61 = xor i32 %tmp5, -2147483648
        %tmp6 = trunc i32 %tmp61 to i16
        %tmp71 = shl i16 %tmp6, 2
        %tmp7 = zext i16 %tmp71 to i32
        %tmp2 = add i32 %tmp7, %i.0
        br label %bb3

bb3:            ; preds = %bb, %entry
        %i.0 = phi i32 [ 0, %entry ], [ %tmp2, %bb ]            ; <i32> [#uses=3]
        %tmp3 = icmp sle i32 %i.0, 9999          ; <i1> [#uses=1]
        br i1 %tmp3, label %bb, label %bb5

bb5:            ; preds = %bb3
        br label %return

return:         ; preds = %bb5
        ret void
}