1; RUN: opt -hexagon-loop-idiom -S < %s | FileCheck %s 2; RUN: opt -p hexagon-loop-idiom -S < %s | FileCheck %s 3 4; Make sure that we generate correct runtime checks. 5 6; CHECK: b7.old: 7; CHECK: [[LEN:%[0-9]+]] = shl nuw i32 %len, 3 8; CHECK: [[SRC:%[0-9]+]] = ptrtoint ptr %src to i32 9; CHECK: [[DST:%[0-9]+]] = ptrtoint ptr %dst to i32 10; CHECK: [[ULT:%[0-9]+]] = icmp ult i32 [[DST]], [[SRC]] 11; CHECK: [[SUB:%[0-9]+]] = sub i32 [[DST]], [[SRC]] 12; CHECK: [[SLT:%[0-9]+]] = icmp sle i32 [[LEN]], [[SUB]] 13; CHECK: [[CND:%[0-9]+]] = or i1 [[ULT]], [[SLT]] 14; CHECK: br i1 [[CND]], label %b8.rtli, label %b8.rtli.ph 15 16target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048" 17target triple = "hexagon" 18 19define void @fred(ptr %dst, ptr %src, i32 %len) #0 { 20b3: 21 %v6 = icmp slt i32 0, %len 22 br i1 %v6, label %b7, label %b16 23 24b7: ; preds = %b3 25 br label %b8 26 27b8: ; preds = %b13, %b7 28 %v9 = phi i32 [ 0, %b7 ], [ %v14, %b13 ] 29 %v10 = getelementptr inbounds i64, ptr %src, i32 %v9 30 %v11 = load i64, ptr %v10, align 8 31 %v12 = getelementptr inbounds i64, ptr %dst, i32 %v9 32 store i64 %v11, ptr %v12, align 8 33 br label %b13 34 35b13: ; preds = %b8 36 %v14 = add nsw i32 %v9, 1 37 %v15 = icmp slt i32 %v14, %len 38 br i1 %v15, label %b8, label %b16 39 40b16: ; preds = %b13, %b3 41 ret void 42} 43 44attributes #0 = { noinline nounwind "target-cpu"="hexagonv60" } 45