37 lines
1016 B
LLVM
37 lines
1016 B
LLVM
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; RUN: opt < %s -loop-simplify -loop-extract -S | FileCheck %s
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@label = common local_unnamed_addr global i8* null
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; CHECK: define
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; no outlined function
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; CHECK-NOT: define
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define i32 @sterix(i32 %n) {
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entry:
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%tobool = icmp ne i32 %n, 0
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; this blockaddress references a basic block that goes in the extracted loop
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%cond = select i1 %tobool, i8* blockaddress(@sterix, %for.cond), i8* blockaddress(@sterix, %exit)
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store i8* %cond, i8** @label
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%cmp5 = icmp sgt i32 %n, 0
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br i1 %cmp5, label %for.body, label %exit
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for.cond:
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%mul = shl nsw i32 %s.06, 1
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%exitcond = icmp eq i32 %inc, %n
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br i1 %exitcond, label %exit.loopexit, label %for.body
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for.body:
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%i.07 = phi i32 [ %inc, %for.cond ], [ 0, %entry ]
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%s.06 = phi i32 [ %mul, %for.cond ], [ 1, %entry ]
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%inc = add nuw nsw i32 %i.07, 1
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br label %for.cond
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exit.loopexit:
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%phitmp = icmp ne i32 %s.06, 2
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%phitmp8 = zext i1 %phitmp to i32
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br label %exit
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exit:
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%s.1 = phi i32 [ 1, %entry ], [ %phitmp8, %exit.loopexit ]
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ret i32 %s.1
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}
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