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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=x86_64-unknown-linux-gnu -debug-entry-values | FileCheck %s3 4; Function Attrs: uwtable5; When tail-duplicating during placement, we work backward from blocks with6; multiple successors. In this case, the block dup1 gets duplicated into dup27; and if.then64, and then the block dup2 gets duplicated into land.lhs.true8; and if.end709 10define void @repeated_tail_dup(i1 %a1, i1 %a2, ptr %a4, ptr %a5, ptr %a6, i32 %a7) #0 align 2 {11; CHECK-LABEL: repeated_tail_dup:12; CHECK: # %bb.0: # %entry13; CHECK-NEXT: jmp .LBB0_114; CHECK-NEXT: .p2align 415; CHECK-NEXT: .LBB0_2: # %land.lhs.true16; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=117; CHECK-NEXT: movl $10, (%rdx)18; CHECK-NEXT: .LBB0_6: # %dup219; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=120; CHECK-NEXT: movl $2, (%rcx)21; CHECK-NEXT: testl %r9d, %r9d22; CHECK-NEXT: jne .LBB0_823; CHECK-NEXT: .LBB0_1: # %for.cond24; CHECK-NEXT: # =>This Inner Loop Header: Depth=125; CHECK-NEXT: testb $1, %dil26; CHECK-NEXT: jne .LBB0_227; CHECK-NEXT: # %bb.3: # %if.end5628; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=129; CHECK-NEXT: testb $1, %sil30; CHECK-NEXT: je .LBB0_531; CHECK-NEXT: # %bb.4: # %if.then6432; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=133; CHECK-NEXT: movb $1, (%r8)34; CHECK-NEXT: testl %r9d, %r9d35; CHECK-NEXT: je .LBB0_136; CHECK-NEXT: jmp .LBB0_837; CHECK-NEXT: .p2align 438; CHECK-NEXT: .LBB0_5: # %if.end7039; CHECK-NEXT: # in Loop: Header=BB0_1 Depth=140; CHECK-NEXT: movl $12, (%rdx)41; CHECK-NEXT: jmp .LBB0_642; CHECK-NEXT: .LBB0_8: # %for.end43; CHECK-NEXT: retq44entry:45 br label %for.cond46 47for.cond: ; preds = %dup1, %entry48 br i1 %a1, label %land.lhs.true, label %if.end5649 50land.lhs.true: ; preds = %for.cond51 store i32 10, ptr %a4, align 852 br label %dup253 54if.end56: ; preds = %for.cond55 br i1 %a2, label %if.then64, label %if.end7056 57if.then64: ; preds = %if.end5658 store i8 1, ptr %a6, align 159 br label %dup160 61if.end70: ; preds = %if.end5662 store i32 12, ptr %a4, align 863 br label %dup264 65dup2: ; preds = %if.end70, %land.lhs.true66 store i32 2, ptr %a5, align 467 br label %dup168 69dup1: ; preds = %dup2, %if.then6470 %val = load i32, ptr %a4, align 871 %switch = icmp ult i32 %a7, 172 br i1 %switch, label %for.cond, label %for.end73 74for.end: ; preds = %dup175 ret void76}77 78attributes #0 = { uwtable }79