diff options
Diffstat (limited to 'llvm/test/Transforms/CodeExtractor/BlockAddressReference.ll')
-rw-r--r-- | llvm/test/Transforms/CodeExtractor/BlockAddressReference.ll | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/llvm/test/Transforms/CodeExtractor/BlockAddressReference.ll b/llvm/test/Transforms/CodeExtractor/BlockAddressReference.ll new file mode 100644 index 00000000000..91f85bf3ed8 --- /dev/null +++ b/llvm/test/Transforms/CodeExtractor/BlockAddressReference.ll @@ -0,0 +1,36 @@ +; RUN: opt < %s -loop-extract -S | FileCheck %s + +@label = common local_unnamed_addr global i8* null + +; CHECK: define +; no outlined function +; CHECK-NOT: define +define i32 @sterix(i32 %n) { +entry: + %tobool = icmp ne i32 %n, 0 + ; this blockaddress references a basic block that goes in the extracted loop + %cond = select i1 %tobool, i8* blockaddress(@sterix, %for.cond), i8* blockaddress(@sterix, %exit) + store i8* %cond, i8** @label + %cmp5 = icmp sgt i32 %n, 0 + br i1 %cmp5, label %for.body, label %exit + +for.cond: + %mul = shl nsw i32 %s.06, 1 + %exitcond = icmp eq i32 %inc, %n + br i1 %exitcond, label %exit.loopexit, label %for.body + +for.body: + %i.07 = phi i32 [ %inc, %for.cond ], [ 0, %entry ] + %s.06 = phi i32 [ %mul, %for.cond ], [ 1, %entry ] + %inc = add nuw nsw i32 %i.07, 1 + br label %for.cond + +exit.loopexit: + %phitmp = icmp ne i32 %s.06, 2 + %phitmp8 = zext i1 %phitmp to i32 + br label %exit + +exit: + %s.1 = phi i32 [ 1, %entry ], [ %phitmp8, %exit.loopexit ] + ret i32 %s.1 +} |