1; Test behavior when inlining policy grows size out of control. 2; In all cases, the end result is the same: mandatory inlinings must happen. 3; Also in all cases, we don't record the mandatory inlining (there's nothing to 4; learn from it). 5; However, when we discover we 'trip' over the artificially-low size increase 6; factor, we penalize the 'bad' decision. 7; REQUIRES: have_tflite 8; 9; Generate mock model 10; RUN: rm -rf %t 11; RUN: rm -rf %t_savedmodel 12; RUN: %python %S/../../../../lib/Analysis/models/gen-inline-oz-test-model.py %t_savedmodel 13; RUN: %python %S/../../../../lib/Analysis/models/saved-model-to-tflite.py %t_savedmodel %t 14; 15; When the bounds are very wide ("no bounds"), all inlinings happen. 16; RUN: opt -passes=scc-oz-module-inliner -ml-inliner-ir2native-model=%S/../../../../unittests/Analysis/Inputs/ir2native_x86_64_model -ml-inliner-model-under-training=%t -training-log=%t1 -enable-ml-inliner=development -ml-advisor-size-increase-threshold=10.0 -S < %s | FileCheck %s --check-prefixes=NOBOUNDS-OUT,CHECK 17; RUN: %python %S/../../../../lib/Analysis/models/log_reader.py %t1 | FileCheck %s --check-prefix=NOBOUNDS 18; 19; When the bounds are very restrictive, the first inlining happens but it's 20; considered as "bad" (since it trips over the bounds) and its reward is a 21; penalty. However, the mandatory inlining, which is considered next, happens. 22; No other inlinings happend. 23; RUN: opt -passes=scc-oz-module-inliner -ml-inliner-ir2native-model=%S/../../../../unittests/Analysis/Inputs/ir2native_x86_64_model -ml-inliner-model-under-training=%t -training-log=%t2 -enable-ml-inliner=development -ml-advisor-size-increase-threshold=1.0 -S < %s | FileCheck %s --check-prefixes=BOUNDS-OUT,CHECK 24; RUN: %python %S/../../../../lib/Analysis/models/log_reader.py %t2 | FileCheck %s --check-prefix=BOUNDS 25; 26; With more restrictive bounds, the first inlining happens and is OK. The 27; mandatory inlining happens next, and it trips over the bounds, which then 28; forces no further inlinings. 29; RUN: opt -passes=scc-oz-module-inliner -ml-inliner-ir2native-model=%S/../../../../unittests/Analysis/Inputs/ir2native_x86_64_model -ml-inliner-model-under-training=%t -training-log=%t3 -enable-ml-inliner=development -ml-advisor-size-increase-threshold=1.1 -S < %s | FileCheck %s --check-prefixes=RELAXED-BOUNDS-OUT,CHECK 30; RUN: %python %S/../../../../lib/Analysis/models/log_reader.py %t3 | FileCheck %s --check-prefix=RELAXED-BOUNDS 31 32target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" 33target triple = "x86_64-grtev4-linux-gnu" 34declare i64 @f1() 35define i64 @may_not_be_inlined() { 36 %r = call i64 @f1() 37 %r2 = add i64 13, %r 38 ret i64 %r2 39} 40define i64 @must_be_inlined() #0 { 41 %r = call i64 @may_not_be_inlined() 42 %r2 = add i64 13, %r 43 ret i64 %r2 44} 45define i64 @top() { 46 %r = call i64 @must_be_inlined() 47 %r2 = call i64 @may_not_be_inlined() 48 %r3 = call i64 @may_not_be_inlined() 49 %r4 = add i64 %r, %r2 50 %r5 = add i64 %r3, %r4 51 ret i64 %r5 52} 53attributes #0 = { alwaysinline } 54; NOBOUNDS: observation: 0 55; NOBOUNDS: delta_size: 6 56; RELAXED-BOUNDS: delta_size: 6 57; BOUNDS: delta_size: 2147483647 58; NOBOUNDS: observation: 1 59; BOUNDS-NOT: observation 60; RELAXED-BOUNDS-NOT: observation 61; NOBOUNDS: delta_size: -11 62; NOBOUNDS: observation: 2 63; NOBOUNDS: delta_size: 4 64 65; CHECK-LABEL: @top 66; must_be_inlined must always be inlined, so we won't find a call to it in @top() 67; CHECK-NOT: call i64 @must_be_inlined 68; @some-function isn't mandatory, and when we set the increase threshold too low, 69; it won't be inlined. 70; NOBOUNDS-OUT-NOT: @may_not_be_inlined 71; RELAXED-BOUNDS-OUT: call i64 @may_not_be_inlined 72; BOUNDS-OUT: call i64 @may_not_be_inlined 73