; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s ; Cold function, %dup should not be duplicated into predecessors. define i32 @cold(i32 %a, ptr %p, ptr %q) !prof !21 { ; CHECK-LABEL: cold: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpl $2, %edi ; CHECK-NEXT: jl .LBB0_2 ; CHECK-NEXT: # %bb.1: # %true1 ; CHECK-NEXT: movl (%rsi), %eax ; CHECK-NEXT: addl $2, %eax ; CHECK-NEXT: .LBB0_3: # %dup ; CHECK-NEXT: cmpl $5, %eax ; CHECK-NEXT: jl .LBB0_5 ; CHECK-NEXT: # %bb.4: # %true2 ; CHECK-NEXT: xorl %edi, %eax ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB0_2: # %false1 ; CHECK-NEXT: movl (%rdx), %eax ; CHECK-NEXT: addl $-3, %eax ; CHECK-NEXT: jmp .LBB0_3 ; CHECK-NEXT: .LBB0_5: # %false2 ; CHECK-NEXT: andl %edi, %eax ; CHECK-NEXT: retq entry: %cond1 = icmp sgt i32 %a, 1 br i1 %cond1, label %true1, label %false1, !prof !30 true1: %v1 = load i32, ptr %p, align 4 %v2 = add i32 %v1, 2 br label %dup false1: %v3 = load i32, ptr %q, align 4 %v4 = sub i32 %v3, 3 br label %dup dup: %v5 = phi i32 [%v2, %true1], [%v4, %false1] %cond2 = icmp sgt i32 %v5, 4 br i1 %cond2, label %true2, label %false2, !prof !30 true2: %v6 = xor i32 %v5, %a br label %exit false2: %v7 = and i32 %v5, %a br label %exit exit: %v8 = phi i32 [%v6, %true2], [%v7, %false2] ret i32 %v8 } ; Same code as previous function, but with hot profile count. ; So %dup should be duplicated into predecessors. define i32 @hot(i32 %a, ptr %p, ptr %q) !prof !22 { ; CHECK-LABEL: hot: ; CHECK: # %bb.0: # %entry ; CHECK-NEXT: cmpl $2, %edi ; CHECK-NEXT: jl .LBB1_2 ; CHECK-NEXT: # %bb.1: # %true1 ; CHECK-NEXT: movl (%rsi), %eax ; CHECK-NEXT: addl $2, %eax ; CHECK-NEXT: cmpl $5, %eax ; CHECK-NEXT: jge .LBB1_4 ; CHECK-NEXT: .LBB1_5: # %false2 ; CHECK-NEXT: andl %edi, %eax ; CHECK-NEXT: retq ; CHECK-NEXT: .LBB1_2: # %false1 ; CHECK-NEXT: movl (%rdx), %eax ; CHECK-NEXT: addl $-3, %eax ; CHECK-NEXT: cmpl $5, %eax ; CHECK-NEXT: jl .LBB1_5 ; CHECK-NEXT: .LBB1_4: # %true2 ; CHECK-NEXT: xorl %edi, %eax ; CHECK-NEXT: retq entry: %cond1 = icmp sgt i32 %a, 1 br i1 %cond1, label %true1, label %false1, !prof !30 true1: %v1 = load i32, ptr %p, align 4 %v2 = add i32 %v1, 2 br label %dup false1: %v3 = load i32, ptr %q, align 4 %v4 = sub i32 %v3, 3 br label %dup dup: %v5 = phi i32 [%v2, %true1], [%v4, %false1] %cond2 = icmp sgt i32 %v5, 4 br i1 %cond2, label %true2, label %false2, !prof !30 true2: %v6 = xor i32 %v5, %a br label %exit false2: %v7 = and i32 %v5, %a br label %exit exit: %v8 = phi i32 [%v6, %true2], [%v7, %false2] ret i32 %v8 } !llvm.module.flags = !{!1} !21 = !{!"function_entry_count", i64 10} !22 = !{!"function_entry_count", i64 400} !30 = !{!"branch_weights", i32 1, i32 1} !1 = !{i32 1, !"ProfileSummary", !2} !2 = !{!3, !4, !5, !6, !7, !8, !9, !10} !3 = !{!"ProfileFormat", !"InstrProf"} !4 = !{!"TotalCount", i64 10000} !5 = !{!"MaxCount", i64 10} !6 = !{!"MaxInternalCount", i64 1} !7 = !{!"MaxFunctionCount", i64 1000} !8 = !{!"NumCounts", i64 3} !9 = !{!"NumFunctions", i64 3} !10 = !{!"DetailedSummary", !11} !11 = !{!12, !13, !14} !12 = !{i32 10000, i64 100, i32 1} !13 = !{i32 999000, i64 100, i32 1} !14 = !{i32 999999, i64 1, i32 2}