106 lines · plain
1; The outlined region has high frequency and the outlining2; call sequence is expensive (input, output, multiple exit etc)3; RUN: opt < %s -passes=partial-inliner -max-num-inline-blocks=2 -S | FileCheck %s4; RUN: opt < %s -passes=partial-inliner -skip-partial-inlining-cost-analysis -max-num-inline-blocks=2 -S | FileCheck --check-prefix=NOCOST %s5 6 7; Function Attrs: nounwind8define i32 @bar_hot_outline_region(i32 %arg) local_unnamed_addr #0 {9bb:10 %tmp = icmp slt i32 %arg, 011 br i1 %tmp, label %bb1, label %bb16, !prof !112 13bb1: ; preds = %bb14 %tmp2 = tail call i32 (...) @foo() #015 %tmp3 = tail call i32 (...) @foo() #016 %tmp4 = tail call i32 (...) @foo() #017 %tmp5 = tail call i32 (...) @foo() #018 %tmp6 = tail call i32 (...) @foo() #019 %tmp7 = tail call i32 (...) @foo() #020 %tmp8 = add nsw i32 %arg, 121 %tmp9 = tail call i32 @goo(i32 %tmp8) #022 %tmp10 = tail call i32 (...) @foo() #023 %tmp11 = icmp eq i32 %tmp10, 024 br i1 %tmp11, label %bb12, label %bb1625 26bb12: ; preds = %bb127 %tmp13 = tail call i32 (...) @foo() #028 %tmp14 = icmp eq i32 %tmp13, 029 %tmp15 = select i1 %tmp14, i32 0, i32 330 br label %bb1631 32bb16: ; preds = %bb12, %bb1, %bb33 %tmp17 = phi i32 [ 2, %bb1 ], [ %tmp15, %bb12 ], [ 0, %bb ]34 ret i32 %tmp1735}36 37define i32 @bar_cold_outline_region(i32 %arg) local_unnamed_addr #0 {38bb:39 %tmp = icmp slt i32 %arg, 040 br i1 %tmp, label %bb1, label %bb16, !prof !241 42bb1: ; preds = %bb43 %tmp2 = tail call i32 (...) @foo() #044 %tmp3 = tail call i32 (...) @foo() #045 %tmp4 = tail call i32 (...) @foo() #046 %tmp5 = tail call i32 (...) @foo() #047 %tmp6 = tail call i32 (...) @foo() #048 %tmp7 = tail call i32 (...) @foo() #049 %tmp8 = add nsw i32 %arg, 150 %tmp9 = tail call i32 @goo(i32 %tmp8) #051 %tmp10 = tail call i32 (...) @foo() #052 %tmp11 = icmp eq i32 %tmp10, 053 br i1 %tmp11, label %bb12, label %bb1654 55bb12: ; preds = %bb156 %tmp13 = tail call i32 (...) @foo() #057 %tmp14 = icmp eq i32 %tmp13, 058 %tmp15 = select i1 %tmp14, i32 0, i32 359 br label %bb1660 61bb16: ; preds = %bb12, %bb1, %bb62 %tmp17 = phi i32 [ 2, %bb1 ], [ %tmp15, %bb12 ], [ 0, %bb ]63 ret i32 %tmp1764}65 66; Function Attrs: nounwind67declare i32 @foo(...) local_unnamed_addr #068 69; Function Attrs: nounwind70declare i32 @goo(i32) local_unnamed_addr #071 72; Function Attrs: nounwind73define i32 @dummy_caller(i32 %arg) local_unnamed_addr #0 {74bb:75; CHECK-LABEL: @dummy_caller76; CHECK-NOT: br i177; CHECK-NOT: call{{.*}}bar_hot_outline_region.78; NOCOST-LABEL: @dummy_caller79; NOCOST: br i180; NOCOST: call{{.*}}bar_hot_outline_region.81 82 %tmp = tail call i32 @bar_hot_outline_region(i32 %arg)83 ret i32 %tmp84}85 86define i32 @dummy_caller2(i32 %arg) local_unnamed_addr #0 {87bb:88; CHECK-LABEL: @dummy_caller289; CHECK: br i190; CHECK: call{{.*}}bar_cold_outline_region.91; NOCOST-LABEL: @dummy_caller292; NOCOST: br i193; NOCOST: call{{.*}}bar_cold_outline_region.94 95 %tmp = tail call i32 @bar_cold_outline_region(i32 %arg)96 ret i32 %tmp97}98 99attributes #0 = { nounwind }100 101!llvm.ident = !{!0}102 103!0 = !{!"clang version 5.0.0 (trunk 301898)"}104!1 = !{!"branch_weights", i32 2000, i32 1}105!2 = !{!"branch_weights", i32 1, i32 100}106