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
| ; RUN: opt < %s -indvars -S | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
target triple = "i686-pc-linux-gnu"
; Indvars should be able to compute an exit value for %tmp1.
define i32 @testcase(i5 zeroext %k) nounwind readnone {
; CHECK-LABEL: @testcase
; CHECK: 120, %bb2.bb3_crit_edge
entry:
br i1 false, label %bb3, label %bb.nph
bb.nph: ; preds = %entry
br label %bb
bb: ; preds = %bb2, %bb.nph
%result2 = phi i32 [ %tmp1, %bb2 ], [ 0, %bb.nph ] ; <i32> [#uses=1]
%k_01 = phi i5 [ %indvar_next1, %bb2 ], [ 0, %bb.nph ] ; <i5> [#uses=2]
%tmp2 = zext i5 %k_01 to i32 ; <i32> [#uses=1]
%tmp1 = add i32 %tmp2, %result2 ; <i32> [#uses=2]
%indvar_next1 = add i5 %k_01, 1 ; <i5> [#uses=2]
br label %bb2
bb2: ; preds = %bb
%phitmp = icmp eq i5 %indvar_next1, -16 ; <i1> [#uses=1]
br i1 %phitmp, label %bb2.bb3_crit_edge, label %bb
bb2.bb3_crit_edge: ; preds = %bb2
br label %bb3
bb3: ; preds = %bb2.bb3_crit_edge, %entry
%result.lcssa = phi i32 [ %tmp1, %bb2.bb3_crit_edge ], [ 0, %entry ] ; <i32> [#uses=1]
ret i32 %result.lcssa
}
|