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comparison test/Transforms/MergeFunc/phi-speculation1.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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-1:000000000000 0:95c75e76d11b
1 ; REQUIRES: asserts
2 ; RUN: opt < %s -mergefunc -stats -disable-output 2>&1 | not grep "functions merged"
3
4 define i32 @foo1(i32 %x) {
5 entry:
6 %A = add i32 %x, 1
7 %B = call i32 @foo1(i32 %A)
8 br label %loop
9 loop:
10 %C = phi i32 [%B, %entry], [%D, %loop]
11 %D = add i32 %x, 2
12 %E = icmp ugt i32 %D, 10000
13 br i1 %E, label %loopexit, label %loop
14 loopexit:
15 ret i32 %D
16 }
17
18 define i32 @foo2(i32 %x) {
19 entry:
20 %0 = add i32 %x, 1
21 %1 = call i32 @foo2(i32 %0)
22 br label %loop
23 loop:
24 %2 = phi i32 [%1, %entry], [%3, %loop]
25 %3 = add i32 %2, 2
26 %4 = icmp ugt i32 %3, 10000
27 br i1 %4, label %loopexit, label %loop
28 loopexit:
29 ret i32 %3
30 }