llvm-for-llvmta/test/Transforms/CodeExtractor/BlockAddressSelfReference.ll

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2022-04-25 10:02:23 +02:00
; RUN: opt < %s -loop-simplify -loop-extract -S | FileCheck %s
@choum.addr = internal unnamed_addr constant [3 x i8*] [i8* blockaddress(@choum, %bb10), i8* blockaddress(@choum, %bb14), i8* blockaddress(@choum, %bb18)]
; CHECK: define
; no outlined function
; CHECK-NOT: define
define void @choum(i32 %arg, i32* nocapture %arg1, i32 %arg2) {
bb:
%tmp = icmp sgt i32 %arg, 0
br i1 %tmp, label %bb3, label %bb24
bb3: ; preds = %bb
%tmp4 = sext i32 %arg2 to i64
%tmp5 = getelementptr inbounds [3 x i8*], [3 x i8*]* @choum.addr, i64 0, i64 %tmp4
%tmp6 = load i8*, i8** %tmp5
%tmp7 = zext i32 %arg to i64
br label %bb8
bb8: ; preds = %bb18, %bb3
%tmp9 = phi i64 [ 0, %bb3 ], [ %tmp22, %bb18 ]
indirectbr i8* %tmp6, [label %bb10, label %bb14, label %bb18]
bb10: ; preds = %bb8
%tmp11 = getelementptr inbounds i32, i32* %arg1, i64 %tmp9
%tmp12 = load i32, i32* %tmp11
%tmp13 = add nsw i32 %tmp12, 1
store i32 %tmp13, i32* %tmp11
br label %bb14
bb14: ; preds = %bb10, %bb8
%tmp15 = getelementptr inbounds i32, i32* %arg1, i64 %tmp9
%tmp16 = load i32, i32* %tmp15
%tmp17 = shl nsw i32 %tmp16, 1
store i32 %tmp17, i32* %tmp15
br label %bb18
bb18: ; preds = %bb14, %bb8
%tmp19 = getelementptr inbounds i32, i32* %arg1, i64 %tmp9
%tmp20 = load i32, i32* %tmp19
%tmp21 = add nsw i32 %tmp20, -3
store i32 %tmp21, i32* %tmp19
%tmp22 = add nuw nsw i64 %tmp9, 1
%tmp23 = icmp eq i64 %tmp22, %tmp7
br i1 %tmp23, label %bb24, label %bb8
bb24: ; preds = %bb18, %bb
ret void
}