derek.holloway
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74 lines
3.4 KiB
LLVM
74 lines
3.4 KiB
LLVM
; Test behavior when inlining policy grows size out of control.
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; In all cases, the end result is the same: mandatory inlinings must happen.
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; Also in all cases, we don't record the mandatory inlining (there's nothing to
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; learn from it).
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; However, when we discover we 'trip' over the artificially-low size increase
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; factor, we penalize the 'bad' decision.
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; REQUIRES: have_tflite
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;
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; Generate mock model
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; RUN: rm -rf %t
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; RUN: rm -rf %t_savedmodel
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; RUN: %python %S/../../../../lib/Analysis/models/gen-inline-oz-test-model.py %t_savedmodel
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; RUN: %python %S/../../../../lib/Analysis/models/saved-model-to-tflite.py %t_savedmodel %t
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;
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; When the bounds are very wide ("no bounds"), all inlinings happen.
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; RUN: opt -passes=scc-oz-module-inliner -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
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; RUN: %python %S/../../../../lib/Analysis/models/log_reader.py %t1 | FileCheck %s --check-prefix=NOBOUNDS
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;
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; When the bounds are very restrictive, the first inlining happens but it's
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; considered as "bad" (since it trips over the bounds) and its reward is a
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; penalty. However, the mandatory inlining, which is considered next, happens.
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; No other inlinings happend.
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; RUN: opt -passes=scc-oz-module-inliner -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
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; RUN: %python %S/../../../../lib/Analysis/models/log_reader.py %t2 | FileCheck %s --check-prefix=BOUNDS
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;
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; With more restrictive bounds, the first inlining happens and is OK. The
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; mandatory inlining happens next, and it trips over the bounds, which then
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; forces no further inlinings.
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; RUN: opt -passes=scc-oz-module-inliner -ml-inliner-model-under-training=%t -training-log=%t3 -enable-ml-inliner=development -ml-advisor-size-increase-threshold=1.2 -S < %s | FileCheck %s --check-prefixes=RELAXED-BOUNDS-OUT,CHECK
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; RUN: %python %S/../../../../lib/Analysis/models/log_reader.py %t3 | FileCheck %s --check-prefix=RELAXED-BOUNDS
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-grtev4-linux-gnu"
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declare i64 @f1()
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define i64 @may_not_be_inlined() {
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%r = call i64 @f1()
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%r2 = add i64 13, %r
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ret i64 %r2
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}
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define i64 @must_be_inlined() #0 {
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%r = call i64 @may_not_be_inlined()
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%r2 = add i64 13, %r
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ret i64 %r2
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}
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define i64 @top() {
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%r = call i64 @must_be_inlined()
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%r2 = call i64 @may_not_be_inlined()
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%r3 = call i64 @may_not_be_inlined()
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%r4 = add i64 %r, %r2
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%r5 = add i64 %r3, %r4
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ret i64 %r5
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}
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attributes #0 = { alwaysinline }
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; NOBOUNDS: observation: 0
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; NOBOUNDS: inlining_decision: 1
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; RELAXED-BOUNDS: inlining_decision: 1
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; BOUNDS: inlining_decision: 1
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; NOBOUNDS: observation: 1
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; BOUNDS-NOT: observation: 1
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; RELAXED-BOUNDS: observation: 1
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; NOBOUNDS: inlining_decision: 1
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; NOBOUNDS: observation: 2
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; NOBOUNDS: inlining_decision
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; RELAXED-BOUNDS-NOT: observation: 2
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; CHECK-LABEL: @top
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; must_be_inlined must always be inlined, so we won't find a call to it in @top()
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; CHECK-NOT: call i64 @must_be_inlined
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; @some-function isn't mandatory, and when we set the increase threshold too low,
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; it won't be inlined.
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; NOBOUNDS-OUT-NOT: @may_not_be_inlined
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; RELAXED-BOUNDS-OUT: call i64 @may_not_be_inlined
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; BOUNDS-OUT: call i64 @may_not_be_inlined
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