Dan Gohman | f17a25c | 2007-07-18 16:29:46 +0000 | [diff] [blame] | 1 | ; This is a basic sanity check for constant propogation. The add instruction |
2 | ; and phi instruction should be eliminated. | ||||
3 | |||||
4 | ; RUN: llvm-as < %s | opt -sccp | llvm-dis | not grep phi | ||||
5 | ; RUN: llvm-as < %s | opt -sccp | llvm-dis | not grep add | ||||
6 | |||||
7 | define i128 @test(i1 %B) { | ||||
8 | br i1 %B, label %BB1, label %BB2 | ||||
9 | BB1: | ||||
10 | %Val = add i128 0, 1 | ||||
11 | br label %BB3 | ||||
12 | BB2: | ||||
13 | br label %BB3 | ||||
14 | BB3: | ||||
15 | %Ret = phi i128 [%Val, %BB1], [1, %BB2] | ||||
16 | ret i128 %Ret | ||||
17 | } |