llvm.org GIT mirror llvm / 19211b4
Add a testcase for PR4569, which is now fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76526 91177308-0d34-0410-b5e6-96231b3b80d8 Dan Gohman 11 years ago
1 changed file(s) with 24 addition(s) and 0 deletion(s). Raw diff Collapse all Expand all
0 ; RUN: llvm-as < %s | opt -analyze -scalar-evolution -disable-output \
1 ; RUN: | FileCheck %s
2 ; PR4569
3
4 define i16 @main() nounwind {
5 entry:
6 br label %bb.i
7
8 bb.i: ; preds = %bb1.i, %bb.nph
9 %l_95.0.i1 = phi i8 [ %tmp1, %bb.i ], [ 0, %entry ]
10
11 ; This cast shouldn't be folded into the addrec.
12 ; CHECK: %tmp = zext i8 %l_95.0.i1 to i16
13 ; CHECK: --> (zext i8 {0,+,-1} to i16) Exits: 2
14
15 %tmp = zext i8 %l_95.0.i1 to i16
16
17 %tmp1 = add i8 %l_95.0.i1, -1
18 %phitmp = icmp eq i8 %tmp1, 1
19 br i1 %phitmp, label %bb1.i.func_36.exit_crit_edge, label %bb.i
20
21 bb1.i.func_36.exit_crit_edge:
22 ret i16 %tmp
23 }