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comparison test/Feature/indirectcall.ll @ 3:9ad51c7bc036

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1st commit. remove git dir and add all files.
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Wed, 15 May 2013 06:43:32 +0900
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-1:000000000000 3:9ad51c7bc036
1 ; RUN: llvm-as < %s | llvm-dis > %t1.ll
2 ; RUN: llvm-as %t1.ll -o - | llvm-dis > %t2.ll
3 ; RUN: diff %t1.ll %t2.ll
4
5 declare i32 @atoi(i8*)
6
7 define i64 @fib(i64 %n) {
8 icmp ult i64 %n, 2 ; <i1>:1 [#uses=1]
9 br i1 %1, label %BaseCase, label %RecurseCase
10
11 BaseCase: ; preds = %0
12 ret i64 1
13
14 RecurseCase: ; preds = %0
15 %n2 = sub i64 %n, 2 ; <i64> [#uses=1]
16 %n1 = sub i64 %n, 1 ; <i64> [#uses=1]
17 %f2 = call i64 @fib( i64 %n2 ) ; <i64> [#uses=1]
18 %f1 = call i64 @fib( i64 %n1 ) ; <i64> [#uses=1]
19 %result = add i64 %f2, %f1 ; <i64> [#uses=1]
20 ret i64 %result
21 }
22
23 define i64 @realmain(i32 %argc, i8** %argv) {
24 ; <label>:0
25 icmp eq i32 %argc, 2 ; <i1>:1 [#uses=1]
26 br i1 %1, label %HasArg, label %Continue
27
28 HasArg: ; preds = %0
29 %n1 = add i32 1, 1 ; <i32> [#uses=1]
30 br label %Continue
31
32 Continue: ; preds = %HasArg, %0
33 %n = phi i32 [ %n1, %HasArg ], [ 1, %0 ] ; <i32> [#uses=1]
34 %N = sext i32 %n to i64 ; <i64> [#uses=1]
35 %F = call i64 @fib( i64 %N ) ; <i64> [#uses=1]
36 ret i64 %F
37 }
38
39 define i64 @trampoline(i64 %n, i64 (i64)* %fibfunc) {
40 %F = call i64 %fibfunc( i64 %n ) ; <i64> [#uses=1]
41 ret i64 %F
42 }
43
44 define i32 @main() {
45 %Result = call i64 @trampoline( i64 10, i64 (i64)* @fib ) ; <i64> [#uses=1]
46 %Result.upgrd.1 = trunc i64 %Result to i32 ; <i32> [#uses=1]
47 ret i32 %Result.upgrd.1
48 }
49