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0d169a02ae
We do not support splitting cleanuppad or catchswitches. This is problematic for passes which assume that a loop is in loop simplify form (the loop would have a dedicated exit block instead of sharing it). While it isn't great that we don't support this for cleanups, we still cannot make loop-simplify form an assertable precondition because indirectbr will also disable these sorts of CFG cleanups. This fixes PR28132. llvm-svn: 272739
78 lines
2.6 KiB
LLVM
78 lines
2.6 KiB
LLVM
; RUN: opt -loop-unroll -S < %s | FileCheck %s
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target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
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target triple = "i686-pc-windows-msvc"
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declare void @fn1(i8*)
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declare i1 @fn2(i8*, i8*)
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define void @fn4() personality i32 (...)* @__CxxFrameHandler3 {
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entry:
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br label %for.body
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for.body: ; preds = %for.inc, %entry
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%i.05 = phi i8 [ 0, %entry ], [ %inc, %for.inc ]
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store i8 undef, i8* undef, align 4
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invoke void @fn1(i8* undef)
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to label %call.i.noexc unwind label %ehcleanup
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call.i.noexc: ; preds = %for.body
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%call1.i2 = invoke i1 @fn2(i8* undef, i8* undef)
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to label %call1.i.noexc unwind label %ehcleanup
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call1.i.noexc: ; preds = %call.i.noexc
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br i1 undef, label %if.then.i, label %if.end4.i
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if.then.i: ; preds = %call1.i.noexc
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%tmp1 = load i8, i8* undef, align 4
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%tobool.i = icmp eq i8 undef, undef
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br i1 undef, label %if.end4.i, label %if.then2.i
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if.then2.i: ; preds = %if.then.i
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%call3.i3 = invoke i1 @fn2(i8* undef, i8* null)
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to label %call3.i.noexc unwind label %ehcleanup
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call3.i.noexc: ; preds = %if.then2.i
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br label %if.end4.i
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if.end4.i: ; preds = %call3.i.noexc, %if.then.i, %call1.i.noexc
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%tmp2 = load i8, i8* undef, align 4
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br label %if.then6.i
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if.then6.i: ; preds = %if.end4.i
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%call7.i4 = invoke i1 @fn2(i8* undef, i8* null)
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to label %call7.i.noexc unwind label %ehcleanup
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call7.i.noexc: ; preds = %if.then6.i
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br label %fn3
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fn3: ; preds = %call7.i.noexc
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%tmp3 = load i8, i8* undef, align 4
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%inc.i = add nsw i8 undef, undef
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store i8 undef, i8* undef, align 4
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br label %for.inc
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for.inc: ; preds = %fn3
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%inc = add nsw i8 %i.05, 1
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%cmp = icmp slt i8 %inc, 6
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br i1 %cmp, label %for.body, label %for.end
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for.end: ; preds = %for.inc
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invoke void @throw()
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to label %unreachable unwind label %ehcleanup
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ehcleanup: ; preds = %for.end, %if.then6.i, %if.then2.i, %call.i.noexc, %for.body
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%cp = cleanuppad within none []
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cleanupret from %cp unwind to caller
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; CHECK: cleanuppad
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; CHECK-NOT: cleanuppad
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unreachable: ; preds = %for.end
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unreachable
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}
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declare i32 @__CxxFrameHandler3(...)
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declare void @throw()
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