; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py ; RUN: llc -mtriple=x86_64-apple-darwin < %s | FileCheck %s ; A MOV32ri is inside a loop, it has two successors, one successor is inside the ; same loop, the other successor is outside the loop. We should be able to sink ; MOV32ri outside the loop. ; rdar://11980766 define i32 @sink_succ(i32 %argc, ptr nocapture %argv) nounwind uwtable ssp { ; CHECK-LABEL: sink_succ: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_1: ## %preheader ; CHECK-NEXT: ## =>This Loop Header: Depth=1 ; CHECK-NEXT: ## Child Loop BB0_2 Depth 2 ; CHECK-NEXT: ## Child Loop BB0_3 Depth 3 ; CHECK-NEXT: movl $1, %ecx ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_2: ## %for.body1.lr ; CHECK-NEXT: ## Parent Loop BB0_1 Depth=1 ; CHECK-NEXT: ## => This Loop Header: Depth=2 ; CHECK-NEXT: ## Child Loop BB0_3 Depth 3 ; CHECK-NEXT: movl %ecx, %edx ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_3: ## %for.body1 ; CHECK-NEXT: ## Parent Loop BB0_1 Depth=1 ; CHECK-NEXT: ## Parent Loop BB0_2 Depth=2 ; CHECK-NEXT: ## => This Inner Loop Header: Depth=3 ; CHECK-NEXT: decl %edx ; CHECK-NEXT: jne LBB0_3 ; CHECK-NEXT: ## %bb.4: ## %for.inc40.i ; CHECK-NEXT: ## in Loop: Header=BB0_2 Depth=2 ; CHECK-NEXT: incl %ecx ; CHECK-NEXT: cmpl $32, %ecx ; CHECK-NEXT: jne LBB0_2 ; CHECK-NEXT: ## %bb.5: ## %exit ; CHECK-NEXT: ## in Loop: Header=BB0_1 Depth=1 ; CHECK-NEXT: incl %eax ; CHECK-NEXT: cmpl $10, %eax ; CHECK-NEXT: jne LBB0_1 ; CHECK-NEXT: ## %bb.6: ## %for.body2.preheader ; CHECK-NEXT: movl $2048, %eax ## imm = 0x800 ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB0_7: ## %for.body2 ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: decl %eax ; CHECK-NEXT: jne LBB0_7 ; CHECK-NEXT: ## %bb.8: ## %for.end20 ; CHECK-NEXT: xorl %eax, %eax ; CHECK-NEXT: retq entry: br label %preheader preheader: %i.127 = phi i32 [ 0, %entry ], [ %inc9, %exit ] br label %for.body1.lr for.body1.lr: %iv30 = phi i32 [ 1, %preheader ], [ %iv.next31, %for.inc40.i ] br label %for.body1 for.body1: %iv.i = phi i64 [ 0, %for.body1.lr ], [ %iv.next.i, %for.body1 ] %iv.next.i = add i64 %iv.i, 1 %lftr.wideiv32 = trunc i64 %iv.next.i to i32 %exitcond33 = icmp eq i32 %lftr.wideiv32, %iv30 br i1 %exitcond33, label %for.inc40.i, label %for.body1 for.inc40.i: %iv.next31 = add i32 %iv30, 1 %exitcond49.i = icmp eq i32 %iv.next31, 32 br i1 %exitcond49.i, label %exit, label %for.body1.lr exit: %inc9 = add nsw i32 %i.127, 1 %exitcond34 = icmp eq i32 %inc9, 10 br i1 %exitcond34, label %for.body2, label %preheader for.body2: %iv = phi i64 [ %iv.next, %for.body2 ], [ 0, %exit ] %iv.next = add i64 %iv, 1 %lftr.wideiv = trunc i64 %iv.next to i32 %exitcond = icmp eq i32 %lftr.wideiv, 2048 br i1 %exitcond, label %for.end20, label %for.body2 for.end20: ret i32 0 } define i32 @sink_out_of_loop(i32 %n, ptr %output) { ; CHECK-LABEL: sink_out_of_loop: ; CHECK: ## %bb.0: ## %entry ; CHECK-NEXT: xorl %ecx, %ecx ; CHECK-NEXT: .p2align 4, 0x90 ; CHECK-NEXT: LBB1_1: ## %loop ; CHECK-NEXT: ## =>This Inner Loop Header: Depth=1 ; CHECK-NEXT: movl %ecx, %eax ; CHECK-NEXT: movl %ecx, (%rsi,%rcx,4) ; CHECK-NEXT: incq %rcx ; CHECK-NEXT: cmpl %edi, %ecx ; CHECK-NEXT: jl LBB1_1 ; CHECK-NEXT: ## %bb.2: ## %exit ; CHECK-NEXT: imull %eax, %eax ; CHECK-NEXT: retq entry: br label %loop loop: %i = phi i32 [ 0, %entry ], [ %i2, %loop ] %j = mul i32 %i, %i %addr = getelementptr i32, ptr %output, i32 %i store i32 %i, ptr %addr %i2 = add i32 %i, 1 %exit_cond = icmp sge i32 %i2, %n br i1 %exit_cond, label %exit, label %loop exit: ret i32 %j }