forked from OSchip/llvm-project
40 lines
1.4 KiB
LLVM
40 lines
1.4 KiB
LLVM
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; RUN: opt -codegenprepare -S < %s | FileCheck %s
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; CHECK: for.body.preheader
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@N = common global i32 0, align 4
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@E = common global i8** null, align 8
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@B = common global i8** null, align 8
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; Function Attrs: nounwind
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define i32 @foo() {
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entry:
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%0 = load i32, i32* @N, align 4
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%1 = load i8**, i8*** @E, align 8
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%2 = load i8**, i8*** @B, align 8
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%cmp7 = icmp eq i8** %2, %1
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br i1 %cmp7, label %for.cond.cleanup, label %for.body.preheader
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for.body.preheader: ; preds = %entry
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br label %for.body
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for.cond.cleanup.loopexit: ; preds = %for.body
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%add.lcssa = phi i32 [ %add, %for.body ]
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br label %for.cond.cleanup
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for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
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%n.0.lcssa = phi i32 [ %0, %entry ], [ %add.lcssa, %for.cond.cleanup.loopexit ]
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ret i32 %n.0.lcssa
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for.body: ; preds = %for.body.preheader, %for.body
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%I.09 = phi i8** [ %incdec.ptr, %for.body ], [ %2, %for.body.preheader ]
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%n.08 = phi i32 [ %add, %for.body ], [ %0, %for.body.preheader ]
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%3 = load i8*, i8** %I.09, align 8
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%call = tail call i32 @map(i8* %3)
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%add = add nsw i32 %call, %n.08
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%incdec.ptr = getelementptr inbounds i8*, i8** %I.09, i64 1
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%cmp = icmp eq i8** %incdec.ptr, %1
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br i1 %cmp, label %for.cond.cleanup.loopexit, label %for.body
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}
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declare i32 @map(i8*)
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