1 ; RUN: opt < %s -scalar-evolution -analyze | FileCheck %s
3 ; ScalarEvolution can't compute a trip count because it doesn't know if
4 ; dividing by the stride will have a remainder. This could theoretically
5 ; be teaching it how to use a more elaborate trip count computation.
7 ; CHECK: Loop %bb3.i: backedge-taken count is ((63 + (-1 * (63 smin %0)) + %0) /u 64)
8 ; CHECK: Loop %bb3.i: max backedge-taken count is 33554431
10 %struct.FILE = type { i32, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, i8*, %struct._IO_marker*, %struct.FILE*, i32, i32, i64, i16, i8, [1 x i8], i8*, i64, i8*, i8*, i8*, i8*, i64, i32, [20 x i8] }
11 %struct.SHA_INFO = type { [5 x i32], i32, i32, [16 x i32] }
12 %struct._IO_marker = type { %struct._IO_marker*, %struct.FILE*, i32 }
14 @_2E_str = external constant [26 x i8]
15 @stdin = external global %struct.FILE*
16 @_2E_str1 = external constant [3 x i8]
17 @_2E_str12 = external constant [30 x i8]
19 declare void @sha_init(%struct.SHA_INFO* nocapture) nounwind
21 declare fastcc void @sha_transform(%struct.SHA_INFO* nocapture) nounwind
23 declare void @sha_print(%struct.SHA_INFO* nocapture) nounwind
25 declare i32 @printf(i8* nocapture, ...) nounwind
27 declare void @sha_final(%struct.SHA_INFO* nocapture) nounwind
29 declare void @sha_update(%struct.SHA_INFO* nocapture, i8* nocapture, i32) nounwind
31 declare i64 @fread(i8* noalias nocapture, i64, i64, %struct.FILE* noalias nocapture) nounwind
33 declare i32 @main(i32, i8** nocapture) nounwind
35 declare noalias %struct.FILE* @fopen(i8* noalias nocapture, i8* noalias nocapture) nounwind
37 declare i32 @fclose(%struct.FILE* nocapture) nounwind
39 declare void @sha_stream(%struct.SHA_INFO* nocapture, %struct.FILE* nocapture) nounwind
41 define void @sha_stream_bb3_2E_i(%struct.SHA_INFO* %sha_info, i8* %data1, i32, i8** %buffer_addr.0.i.out, i32* %count_addr.0.i.out) nounwind {
45 sha_update.exit.exitStub: ; preds = %bb3.i
46 store i8* %buffer_addr.0.i, i8** %buffer_addr.0.i.out
47 store i32 %count_addr.0.i, i32* %count_addr.0.i.out
50 bb2.i: ; preds = %bb3.i
51 %1 = getelementptr %struct.SHA_INFO, %struct.SHA_INFO* %sha_info, i64 0, i32 3
52 %2 = bitcast [16 x i32]* %1 to i8*
53 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %buffer_addr.0.i, i64 64, i1 false)
54 %3 = getelementptr %struct.SHA_INFO, %struct.SHA_INFO* %sha_info, i64 0, i32 3, i64 0
55 %4 = bitcast i32* %3 to i8*
58 codeRepl: ; preds = %bb2.i
59 call void @sha_stream_bb3_2E_i_bb1_2E_i_2E_i(i8* %4)
60 br label %byte_reverse.exit.i
62 byte_reverse.exit.i: ; preds = %codeRepl
63 call fastcc void @sha_transform(%struct.SHA_INFO* %sha_info) nounwind
64 %5 = getelementptr i8, i8* %buffer_addr.0.i, i64 64
65 %6 = add i32 %count_addr.0.i, -64
68 bb3.i: ; preds = %byte_reverse.exit.i, %newFuncRoot
69 %buffer_addr.0.i = phi i8* [ %data1, %newFuncRoot ], [ %5, %byte_reverse.exit.i ]
70 %count_addr.0.i = phi i32 [ %0, %newFuncRoot ], [ %6, %byte_reverse.exit.i ]
71 %7 = icmp sgt i32 %count_addr.0.i, 63
72 br i1 %7, label %bb2.i, label %sha_update.exit.exitStub
75 declare void @sha_stream_bb3_2E_i_bb1_2E_i_2E_i(i8*) nounwind
77 declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind
79 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) nounwind