| Dale Johannesen | 5adaa75 | 2009-01-12 22:11:50 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | opt -inline | llvm-dis | grep {call.*fib} | count 4 |
| 2 | ; First call to fib from fib is inlined, producing 2 instead of 1, total 3. |
| 3 | ; Second call to fib from fib is not inlined because new body of fib exceeds |
| 4 | ; inlining limit of 200. Plus call in main = 4 total. |
| 5 | |
| 6 | ; ModuleID = '<stdin>' |
| 7 | 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-f80:128:128" |
| 8 | target triple = "i386-apple-darwin9.6" |
| 9 | @"\01LC" = internal constant [5 x i8] c"%ld\0A\00" ; <[5 x i8]*> [#uses=1] |
| 10 | |
| 11 | define i32 @fib(i32 %n) nounwind { |
| 12 | entry: |
| 13 | %n_addr = alloca i32 ; <i32*> [#uses=4] |
| 14 | %retval = alloca i32 ; <i32*> [#uses=2] |
| 15 | %0 = alloca i32 ; <i32*> [#uses=3] |
| 16 | %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] |
| 17 | store i32 %n, i32* %n_addr |
| 18 | %1 = load i32* %n_addr, align 4 ; <i32> [#uses=1] |
| 19 | %2 = icmp ule i32 %1, 1 ; <i1> [#uses=1] |
| 20 | br i1 %2, label %bb, label %bb1 |
| 21 | |
| 22 | bb: ; preds = %entry |
| 23 | store i32 1, i32* %0, align 4 |
| 24 | br label %bb2 |
| 25 | |
| 26 | bb1: ; preds = %entry |
| 27 | %3 = load i32* %n_addr, align 4 ; <i32> [#uses=1] |
| 28 | %4 = sub i32 %3, 2 ; <i32> [#uses=1] |
| 29 | %5 = call i32 @fib(i32 %4) nounwind ; <i32> [#uses=1] |
| 30 | %6 = load i32* %n_addr, align 4 ; <i32> [#uses=1] |
| 31 | %7 = sub i32 %6, 1 ; <i32> [#uses=1] |
| 32 | %8 = call i32 @fib(i32 %7) nounwind ; <i32> [#uses=1] |
| 33 | %9 = add i32 %5, %8 ; <i32> [#uses=1] |
| 34 | store i32 %9, i32* %0, align 4 |
| 35 | br label %bb2 |
| 36 | |
| 37 | bb2: ; preds = %bb1, %bb |
| 38 | %10 = load i32* %0, align 4 ; <i32> [#uses=1] |
| 39 | store i32 %10, i32* %retval, align 4 |
| 40 | br label %return |
| 41 | |
| 42 | return: ; preds = %bb2 |
| 43 | %retval3 = load i32* %retval ; <i32> [#uses=1] |
| 44 | ret i32 %retval3 |
| 45 | } |
| 46 | |
| 47 | define i32 @main(i32 %argc, i8** %argv) nounwind { |
| 48 | entry: |
| 49 | %argc_addr = alloca i32 ; <i32*> [#uses=2] |
| 50 | %argv_addr = alloca i8** ; <i8***> [#uses=2] |
| 51 | %retval = alloca i32 ; <i32*> [#uses=2] |
| 52 | %N = alloca i32 ; <i32*> [#uses=2] |
| 53 | %0 = alloca i32 ; <i32*> [#uses=2] |
| 54 | %iftmp.0 = alloca i32 ; <i32*> [#uses=3] |
| 55 | %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] |
| 56 | store i32 %argc, i32* %argc_addr |
| 57 | store i8** %argv, i8*** %argv_addr |
| 58 | %1 = load i32* %argc_addr, align 4 ; <i32> [#uses=1] |
| 59 | %2 = icmp eq i32 %1, 2 ; <i1> [#uses=1] |
| 60 | br i1 %2, label %bb, label %bb1 |
| 61 | |
| 62 | bb: ; preds = %entry |
| 63 | %3 = load i8*** %argv_addr, align 4 ; <i8**> [#uses=1] |
| 64 | %4 = getelementptr i8** %3, i32 1 ; <i8**> [#uses=1] |
| 65 | %5 = load i8** %4, align 4 ; <i8*> [#uses=1] |
| 66 | %6 = call i32 @atoi(i8* %5) nounwind ; <i32> [#uses=1] |
| 67 | store i32 %6, i32* %iftmp.0, align 4 |
| 68 | br label %bb2 |
| 69 | |
| 70 | bb1: ; preds = %entry |
| 71 | store i32 43, i32* %iftmp.0, align 4 |
| 72 | br label %bb2 |
| 73 | |
| 74 | bb2: ; preds = %bb1, %bb |
| 75 | %7 = load i32* %iftmp.0, align 4 ; <i32> [#uses=1] |
| 76 | store i32 %7, i32* %N, align 4 |
| 77 | %8 = load i32* %N, align 4 ; <i32> [#uses=1] |
| 78 | %9 = call i32 @fib(i32 %8) nounwind ; <i32> [#uses=1] |
| 79 | %10 = call i32 (i8*, ...)* @printf(i8* getelementptr ([5 x i8]* @"\01LC", i32 0, i32 0), i32 %9) nounwind ; <i32> [#uses=0] |
| 80 | store i32 0, i32* %0, align 4 |
| 81 | %11 = load i32* %0, align 4 ; <i32> [#uses=1] |
| 82 | store i32 %11, i32* %retval, align 4 |
| 83 | br label %return |
| 84 | |
| 85 | return: ; preds = %bb2 |
| 86 | %retval3 = load i32* %retval ; <i32> [#uses=1] |
| 87 | ret i32 %retval3 |
| 88 | } |
| 89 | |
| 90 | declare i32 @atoi(i8*) |
| 91 | |
| 92 | declare i32 @printf(i8*, ...) nounwind |