mirror of
https://github.com/c64scene-ar/llvm-6502.git
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8a977e2edd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94574 91177308-0d34-0410-b5e6-96231b3b80d8
79 lines
3.5 KiB
LLVM
79 lines
3.5 KiB
LLVM
; RUN: opt < %s -scalar-evolution -analyze \
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; RUN: | grep {Loop %bb3\\.i: Unpredictable backedge-taken count\\.}
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; ScalarEvolution can't compute a trip count because it doesn't know if
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; dividing by the stride will have a remainder. This could theoretically
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; be teaching it how to use a more elaborate trip count computation.
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target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128"
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target triple = "x86_64-unknown-linux-gnu"
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%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] }
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%struct.SHA_INFO = type { [5 x i32], i32, i32, [16 x i32] }
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%struct._IO_marker = type { %struct._IO_marker*, %struct.FILE*, i32 }
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@_2E_str = external constant [26 x i8] ; <[26 x i8]*> [#uses=0]
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@stdin = external global %struct.FILE* ; <%struct.FILE**> [#uses=0]
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@_2E_str1 = external constant [3 x i8] ; <[3 x i8]*> [#uses=0]
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@_2E_str12 = external constant [30 x i8] ; <[30 x i8]*> [#uses=0]
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declare void @sha_init(%struct.SHA_INFO* nocapture) nounwind
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declare fastcc void @sha_transform(%struct.SHA_INFO* nocapture) nounwind
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declare void @sha_print(%struct.SHA_INFO* nocapture) nounwind
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declare i32 @printf(i8* nocapture, ...) nounwind
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declare void @sha_final(%struct.SHA_INFO* nocapture) nounwind
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declare void @llvm.memset.i64(i8* nocapture, i8, i64, i32) nounwind
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declare void @sha_update(%struct.SHA_INFO* nocapture, i8* nocapture, i32) nounwind
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declare void @llvm.memcpy.i64(i8* nocapture, i8* nocapture, i64, i32) nounwind
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declare i64 @fread(i8* noalias nocapture, i64, i64, %struct.FILE* noalias nocapture) nounwind
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declare i32 @main(i32, i8** nocapture) nounwind
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declare noalias %struct.FILE* @fopen(i8* noalias nocapture, i8* noalias nocapture) nounwind
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declare i32 @fclose(%struct.FILE* nocapture) nounwind
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declare void @sha_stream(%struct.SHA_INFO* nocapture, %struct.FILE* nocapture) nounwind
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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 {
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newFuncRoot:
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br label %bb3.i
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sha_update.exit.exitStub: ; preds = %bb3.i
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store i8* %buffer_addr.0.i, i8** %buffer_addr.0.i.out
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store i32 %count_addr.0.i, i32* %count_addr.0.i.out
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ret void
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bb2.i: ; preds = %bb3.i
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%1 = getelementptr %struct.SHA_INFO* %sha_info, i64 0, i32 3 ; <[16 x i32]*> [#uses=1]
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%2 = bitcast [16 x i32]* %1 to i8* ; <i8*> [#uses=1]
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call void @llvm.memcpy.i64(i8* %2, i8* %buffer_addr.0.i, i64 64, i32 1) nounwind
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%3 = getelementptr %struct.SHA_INFO* %sha_info, i64 0, i32 3, i64 0 ; <i32*> [#uses=1]
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%4 = bitcast i32* %3 to i8* ; <i8*> [#uses=1]
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br label %codeRepl
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codeRepl: ; preds = %bb2.i
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call void @sha_stream_bb3_2E_i_bb1_2E_i_2E_i(i8* %4)
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br label %byte_reverse.exit.i
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byte_reverse.exit.i: ; preds = %codeRepl
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call fastcc void @sha_transform(%struct.SHA_INFO* %sha_info) nounwind
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%5 = getelementptr i8* %buffer_addr.0.i, i64 64 ; <i8*> [#uses=1]
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%6 = add i32 %count_addr.0.i, -64 ; <i32> [#uses=1]
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br label %bb3.i
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bb3.i: ; preds = %byte_reverse.exit.i, %newFuncRoot
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%buffer_addr.0.i = phi i8* [ %data1, %newFuncRoot ], [ %5, %byte_reverse.exit.i ] ; <i8*> [#uses=3]
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%count_addr.0.i = phi i32 [ %0, %newFuncRoot ], [ %6, %byte_reverse.exit.i ] ; <i32> [#uses=3]
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%7 = icmp sgt i32 %count_addr.0.i, 63 ; <i1> [#uses=1]
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br i1 %7, label %bb2.i, label %sha_update.exit.exitStub
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}
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declare void @sha_stream_bb3_2E_i_bb1_2E_i_2E_i(i8*) nounwind
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