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cf082ae903
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llvm-svn: 186268
114 lines
5.1 KiB
LLVM
114 lines
5.1 KiB
LLVM
; RUN: opt -loop-reduce -S < %s | FileCheck %s
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;
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; <rdar://10701050> "Cannot split an edge from an IndirectBrInst" assert.
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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-n8:16:32:64"
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target triple = "x86_64-apple-darwin10.0.0"
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; while.cond197 is a dominates the simplified loop while.cond238 but
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; has no with no preheader.
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;
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; CHECK-LABEL: @nopreheader(
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; CHECK: %while.cond238
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; CHECK: phi i64
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; CHECK-NOT: phi
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; CHECK: indirectbr
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define void @nopreheader(i8* %end) nounwind {
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entry:
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br label %while.cond179
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while.cond179: ; preds = %if.end434, %if.end369, %if.end277, %if.end165
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%s.1 = phi i8* [ undef, %if.end434 ], [ %incdec.ptr356, %if.end348 ], [ undef, %entry ]
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indirectbr i8* undef, [label %land.rhs184, label %while.end453]
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land.rhs184: ; preds = %while.cond179
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indirectbr i8* undef, [label %while.end453, label %while.cond197]
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while.cond197: ; preds = %land.rhs202, %land.rhs184
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%0 = phi i64 [ %indvar.next11, %land.rhs202 ], [ 0, %land.rhs184 ]
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indirectbr i8* undef, [label %land.rhs202, label %while.end215]
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land.rhs202: ; preds = %while.cond197
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%indvar.next11 = add i64 %0, 1
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indirectbr i8* undef, [label %while.end215, label %while.cond197]
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while.end215: ; preds = %land.rhs202, %while.cond197
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indirectbr i8* undef, [label %PREMATURE, label %if.end221]
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if.end221: ; preds = %while.end215
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indirectbr i8* undef, [label %while.cond238.preheader, label %lor.lhs.false227]
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lor.lhs.false227: ; preds = %if.end221
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indirectbr i8* undef, [label %while.cond238.preheader, label %if.else]
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while.cond238.preheader: ; preds = %lor.lhs.false227, %if.end221
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%tmp16 = add i64 %0, 2
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indirectbr i8* undef, [label %while.cond238]
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while.cond238: ; preds = %land.rhs243, %while.cond238.preheader
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%1 = phi i64 [ %indvar.next15, %land.rhs243 ], [ 0, %while.cond238.preheader ]
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%tmp36 = add i64 %tmp16, %1
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%s.3 = getelementptr i8* %s.1, i64 %tmp36
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%cmp241 = icmp ult i8* %s.3, %end
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indirectbr i8* undef, [label %land.rhs243, label %while.end256]
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land.rhs243: ; preds = %while.cond238
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%indvar.next15 = add i64 %1, 1
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indirectbr i8* undef, [label %while.end256, label %while.cond238]
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while.end256: ; preds = %land.rhs243, %while.cond238
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indirectbr i8* undef, [label %PREMATURE]
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if.else: ; preds = %lor.lhs.false227
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indirectbr i8* undef, [label %if.then297, label %if.else386]
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if.then297: ; preds = %if.else
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indirectbr i8* undef, [label %PREMATURE, label %if.end307]
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if.end307: ; preds = %if.then297
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indirectbr i8* undef, [label %if.end314, label %FAIL]
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if.end314: ; preds = %if.end307
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indirectbr i8* undef, [label %if.end340]
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if.end340: ; preds = %while.end334
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indirectbr i8* undef, [label %PREMATURE, label %if.end348]
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if.end348: ; preds = %if.end340
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%incdec.ptr356 = getelementptr inbounds i8* undef, i64 2
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indirectbr i8* undef, [label %while.cond179]
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if.else386: ; preds = %if.else
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indirectbr i8* undef, [label %while.end453, label %if.end434]
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if.end434: ; preds = %if.then428, %if.end421
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indirectbr i8* undef, [label %while.cond179]
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while.end453: ; preds = %if.else386, %land.rhs184, %while.cond179
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indirectbr i8* undef, [label %PREMATURE, label %if.end459]
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if.end459: ; preds = %while.end453
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indirectbr i8* undef, [label %if.then465, label %FAIL]
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if.then465: ; preds = %if.end459
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indirectbr i8* undef, [label %return, label %if.then479]
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if.then479: ; preds = %if.then465
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indirectbr i8* undef, [label %return]
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FAIL: ; preds = %if.end459, %if.end307, %land.lhs.true142, %land.lhs.true131, %while.end
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indirectbr i8* undef, [label %DECL_FAIL]
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PREMATURE: ; preds = %while.end453, %while.end415, %if.end340, %while.end334, %if.then297, %while.end256, %while.end215
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indirectbr i8* undef, [label %return, label %if.then495]
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if.then495: ; preds = %PREMATURE
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indirectbr i8* undef, [label %return]
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DECL_FAIL: ; preds = %if.then488, %FAIL, %land.lhs.true99, %lor.lhs.false, %if.end83, %if.then39, %if.end
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indirectbr i8* undef, [label %return]
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return: ; preds = %if.then512, %if.end504, %DECL_FAIL, %if.then495, %PREMATURE, %if.then479, %if.then465, %if.then69, %if.end52, %if.end19, %if.then
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ret void
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}
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