128 lines
5.5 KiB
LLVM
128 lines
5.5 KiB
LLVM
; RUN: llc < %s -mtriple=thumbv7-apple-darwin -O3 -relocation-model=pic -arm-atomic-cfg-tidy=0 | FileCheck %s
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; rdar://8115404
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; Tail merging must not split an IT block.
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%struct.FILE = type { i8*, i32, i32, i16, i16, %struct.__sbuf, i32, i8*, i32 (i8*)*, i32 (i8*, i8*, i32)*, i64 (i8*, i64, i32)*, i32 (i8*, i8*, i32)*, %struct.__sbuf, %struct.__sFILEX*, i32, [3 x i8], [1 x i8], %struct.__sbuf, i32, i64 }
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%struct._RuneCharClass = type { [14 x i8], i32 }
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%struct._RuneEntry = type { i32, i32, i32, i32* }
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%struct._RuneLocale = type { [8 x i8], [32 x i8], i32 (i8*, i32, i8**)*, i32 (i32, i8*, i32, i8**)*, i32, [256 x i32], [256 x i32], [256 x i32], %struct._RuneRange, %struct._RuneRange, %struct._RuneRange, i8*, i32, i32, %struct._RuneCharClass* }
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%struct._RuneRange = type { i32, %struct._RuneEntry* }
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%struct.__sFILEX = type opaque
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%struct.__sbuf = type { i8*, i32 }
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@finput = external global %struct.FILE* ; <%struct.FILE**> [#uses=1]
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@_DefaultRuneLocale = external global %struct._RuneLocale ; <%struct._RuneLocale*> [#uses=0]
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@token_buffer = external global [1025 x i8], align 4 ; <[1025 x i8]*> [#uses=1]
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@.str73 = external constant [6 x i8], align 4 ; <[6 x i8]*> [#uses=0]
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@.str174 = external constant [5 x i8], align 4 ; <[5 x i8]*> [#uses=0]
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@.str275 = external constant [6 x i8], align 4 ; <[6 x i8]*> [#uses=0]
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@.str376 = external constant [5 x i8], align 4 ; <[5 x i8]*> [#uses=0]
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@.str477 = external constant [6 x i8], align 4 ; <[6 x i8]*> [#uses=0]
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@.str578 = external constant [6 x i8], align 4 ; <[6 x i8]*> [#uses=0]
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@.str679 = external constant [7 x i8], align 4 ; <[7 x i8]*> [#uses=0]
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@.str780 = external constant [6 x i8], align 4 ; <[6 x i8]*> [#uses=0]
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@.str881 = external constant [5 x i8], align 4 ; <[5 x i8]*> [#uses=0]
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@.str982 = external constant [6 x i8], align 4 ; <[6 x i8]*> [#uses=0]
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@.str1083 = external constant [9 x i8], align 4 ; <[9 x i8]*> [#uses=0]
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@.str1184 = external constant [7 x i8], align 4 ; <[7 x i8]*> [#uses=0]
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@.str1285 = external constant [16 x i8], align 4 ; <[16 x i8]*> [#uses=0]
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@.str1386 = external constant [12 x i8], align 4 ; <[12 x i8]*> [#uses=0]
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@.str1487 = external constant [5 x i8], align 4 ; <[5 x i8]*> [#uses=0]
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@llvm.used = external global [1 x i8*] ; <[1 x i8*]*> [#uses=0]
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define fastcc i32 @parse_percent_token() nounwind {
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entry:
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; CHECK: pop
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; CHECK: pop
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; CHECK: pop
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; CHECK: pop
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; CHECK: pop
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; CHECK: pop
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; CHECK: pop
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; Do not convert into single stream code. BranchProbability Analysis assumes
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; that branches which goes to "ret" instruction have lower probabilities.
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switch i32 undef, label %bb7 [
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i32 37, label %bb43
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i32 48, label %bb5
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i32 50, label %bb4
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i32 60, label %bb2
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i32 61, label %bb6
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i32 62, label %bb3
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i32 123, label %bb1
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]
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bb1: ; preds = %entry
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ret i32 8
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bb2: ; preds = %entry
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ret i32 15
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bb3: ; preds = %entry
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ret i32 16
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bb4: ; preds = %entry
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ret i32 17
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bb5: ; preds = %entry
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ret i32 9
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bb6: ; preds = %entry
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ret i32 18
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bb7: ; preds = %entry
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br i1 undef, label %bb.i.i, label %bb1.i.i
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bb.i.i: ; preds = %bb7
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br i1 undef, label %bb43, label %bb12
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bb1.i.i: ; preds = %bb7
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unreachable
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bb9: ; preds = %bb.i.i2
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br i1 undef, label %bb10, label %bb11
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bb10: ; preds = %bb9
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br label %bb11
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bb11: ; preds = %bb10, %bb9
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%p.0 = phi i8* [ undef, %bb10 ], [ %p.1, %bb9 ] ; <i8*> [#uses=1]
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%0 = load %struct.FILE*, %struct.FILE** @finput, align 4 ; <%struct.FILE*> [#uses=1]
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%1 = tail call i32 @getc(%struct.FILE* %0) nounwind ; <i32> [#uses=0]
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br label %bb12
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bb12: ; preds = %bb11, %bb.i.i
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%p.1 = phi i8* [ %p.0, %bb11 ], [ getelementptr inbounds ([1025 x i8], [1025 x i8]* @token_buffer, i32 0, i32 0), %bb.i.i ] ; <i8*> [#uses=2]
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%2 = icmp ult i32 undef, 128 ; <i1> [#uses=1]
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br i1 %2, label %bb.i.i2, label %bb1.i.i3
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bb.i.i2: ; preds = %bb12
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%3 = load i32, i32* null, align 4 ; <i32> [#uses=1]
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%4 = lshr i32 %3, 8 ; <i32> [#uses=1]
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%.lobit.i1 = and i32 %4, 1 ; <i32> [#uses=1]
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%.not = icmp ne i32 %.lobit.i1, 0 ; <i1> [#uses=1]
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%or.cond = or i1 %.not, undef ; <i1> [#uses=1]
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br i1 %or.cond, label %bb9, label %bb14
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bb1.i.i3: ; preds = %bb12
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unreachable
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bb14: ; preds = %bb.i.i2
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store i8 0, i8* %p.1, align 1
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br i1 undef, label %bb43, label %bb15
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bb15: ; preds = %bb14
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unreachable
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bb43: ; preds = %bb14, %bb.i.i, %entry
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%.0 = phi i32 [ 7, %entry ], [ 24, %bb.i.i ], [ 9, %bb14 ] ; <i32> [#uses=1]
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ret i32 %.0
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}
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declare i32 @getc(%struct.FILE* nocapture) nounwind
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declare i32 @strcmp(i8* nocapture, i8* nocapture) nounwind readonly
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declare i32 @__maskrune(i32, i32)
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declare i32 @ungetc(i32, %struct.FILE* nocapture) nounwind
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