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49 lines
1.7 KiB
LLVM
49 lines
1.7 KiB
LLVM
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; RUN: opt < %s -loop-reduce -S | FileCheck %s
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target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-pc-windows-msvc"
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define void @f() personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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br label %for.cond.i
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for.cond.i: ; preds = %for.inc.i, %entry
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%_First.addr.0.i = phi i32* [ null, %entry ], [ %incdec.ptr.i, %for.inc.i ]
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invoke void @g()
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to label %for.inc.i unwind label %catch.dispatch.i
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catch.dispatch.i: ; preds = %for.cond.i
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%cs = catchswitch within none [label %for.cond.1.preheader.i] unwind to caller
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for.cond.1.preheader.i: ; preds = %catch.dispatch.i
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%0 = catchpad within %cs [i8* null, i32 64, i8* null]
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%cmp.i = icmp eq i32* %_First.addr.0.i, null
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br label %for.cond.1.i
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for.cond.1.i: ; preds = %for.body.i, %for.cond.1.preheader.i
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br i1 %cmp.i, label %for.end.i, label %for.body.i
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for.body.i: ; preds = %for.cond.1.i
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call void @g()
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br label %for.cond.1.i
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for.inc.i: ; preds = %for.cond.i
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%incdec.ptr.i = getelementptr inbounds i32, i32* %_First.addr.0.i, i64 1
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br label %for.cond.i
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for.end.i: ; preds = %for.cond.1.i
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catchret from %0 to label %leave
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leave: ; preds = %for.end.i
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ret void
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}
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; CHECK-LABEL: define void @f(
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; CHECK: %[[PHI:.*]] = phi i64 [ %[[IV_NEXT:.*]], {{.*}} ], [ 0, {{.*}} ]
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; CHECK: %[[ITOP:.*]] = inttoptr i64 %[[PHI]] to i32*
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; CHECK: %[[CMP:.*]] = icmp eq i32* %[[ITOP]], null
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; CHECK: %[[IV_NEXT]] = add i64 %[[PHI]], -4
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declare void @g()
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declare i32 @__CxxFrameHandler3(...)
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