1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 2 2; RUN: llc < %s | FileCheck %s 3target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" 4target triple = "thumbv7-unknown-linux-gnueabihf" 5 6%Target = type { ptr, ptr } 7%List = type { i32, ptr } 8 9; The entry block should be the first block of the function. 10 11define i1 @foo(ptr %ha, i32 %he) !prof !39 { 12; CHECK-LABEL: foo: 13; CHECK: @ %bb.0: @ %entry 14; CHECK-NEXT: ldr r2, [r0] 15; CHECK-NEXT: cmp r2, #0 16; CHECK-NEXT: itt eq 17; CHECK-NEXT: moveq r0, #0 18; CHECK-NEXT: bxeq lr 19; CHECK-NEXT: .LBB0_1: @ %for.body.preheader 20; CHECK-NEXT: .save {r7, lr} 21; CHECK-NEXT: push {r7, lr} 22; CHECK-NEXT: b .LBB0_3 23; CHECK-NEXT: .LBB0_2: @ %for.inc 24; CHECK-NEXT: @ in Loop: Header=BB0_3 Depth=1 25; CHECK-NEXT: ldr r2, [r2] 26; CHECK-NEXT: movs r0, #0 27; CHECK-NEXT: cmp r2, #0 28; CHECK-NEXT: it eq 29; CHECK-NEXT: popeq {r7, pc} 30; CHECK-NEXT: .LBB0_3: @ %for.body 31; CHECK-NEXT: @ =>This Loop Header: Depth=1 32; CHECK-NEXT: @ Child Loop BB0_5 Depth 2 33; CHECK-NEXT: ldr r0, [r2, #4] 34; CHECK-NEXT: cmp r0, #0 35; CHECK-NEXT: beq .LBB0_2 36; CHECK-NEXT: @ %bb.4: @ %if.then 37; CHECK-NEXT: @ in Loop: Header=BB0_3 Depth=1 38; CHECK-NEXT: ldrd r3, r0, [r0] 39; CHECK-NEXT: sub.w r12, r0, #4 40; CHECK-NEXT: .LBB0_5: @ %for.cond.i 41; CHECK-NEXT: @ Parent Loop BB0_3 Depth=1 42; CHECK-NEXT: @ => This Inner Loop Header: Depth=2 43; CHECK-NEXT: cmp r3, #1 44; CHECK-NEXT: blt .LBB0_2 45; CHECK-NEXT: @ %bb.6: @ %for.body.i 46; CHECK-NEXT: @ in Loop: Header=BB0_5 Depth=2 47; CHECK-NEXT: ldr.w lr, [r12, r3, lsl #2] 48; CHECK-NEXT: subs r3, #1 49; CHECK-NEXT: movs r0, #1 50; CHECK-NEXT: cmp lr, r1 51; CHECK-NEXT: bne .LBB0_5 52; CHECK-NEXT: @ %bb.7: 53; CHECK-NEXT: pop {r7, pc} 54entry: 55 %TargetPtr = load ptr, ptr %ha, align 4 56 %cmp1 = icmp eq ptr %TargetPtr, null 57 br i1 %cmp1, label %return, label %for.body, !prof !50 58 59for.body: 60 %TargetPhi = phi ptr [ %NextPtr, %for.inc ], [ %TargetPtr, %entry ] 61 %ListAddr = getelementptr inbounds %Target, ptr %TargetPhi, i32 0, i32 1 62 %ListPtr = load ptr, ptr %ListAddr, align 4 63 %cmp2 = icmp eq ptr %ListPtr, null 64 br i1 %cmp2, label %for.inc, label %if.then, !prof !59 65 66if.then: 67 %len = load i32, ptr %ListPtr, align 4 68 %ptr = getelementptr inbounds %List, ptr %ListPtr, i32 0, i32 1 69 %ptr2 = load ptr, ptr %ptr, align 4 70 br label %for.cond.i 71 72for.cond.i: 73 %i = phi i32 [ %len, %if.then ], [ %index, %for.body.i ] 74 %index = add nsw i32 %i, -1 75 %cmp3 = icmp sgt i32 %i, 0 76 br i1 %cmp3, label %for.body.i, label %for.inc, !prof !75 77 78for.body.i: 79 %ptr3 = getelementptr inbounds i32, ptr %ptr2, i32 %index 80 %data = load i32, ptr %ptr3, align 4 81 %cmp4 = icmp eq i32 %data, %he 82 br i1 %cmp4, label %return, label %for.cond.i, !prof !79 83 84for.inc: 85 %NextPtr = load ptr, ptr %TargetPhi, align 4 86 %cmp5 = icmp eq ptr %NextPtr, null 87 br i1 %cmp5, label %return, label %for.body, !prof !50 88 89return: 90 %retval = phi i1 [ false, %entry ], [ true, %for.body.i ], [ false, %for.inc ] 91 ret i1 %retval 92} 93 94!39 = !{!"function_entry_count", i64 226} 95!50 = !{!"branch_weights", i32 451, i32 1} 96!59 = !{!"branch_weights", i32 1502, i32 1} 97!75 = !{!"branch_weights", i32 301, i32 1} 98!79 = !{!"branch_weights", i32 1, i32 301} 99