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llvm-mirror/test/Transforms/Inline/module-inlining.ll
Mircea Trofin cb0c00be5f [llvm] Add interface to drive inlining decision using ML model
Summary:

This change introduces InliningAdvisor (and related APIs), the interface
that abstracts decision making away from the inlining pass. We will use
this interface to delegate decision making to a trained ML model,
subsequently (see referenced RFC).

RFC: http://lists.llvm.org/pipermail/llvm-dev/2020-April/140763.html

Reviewers: davidxl, eraman, dblaikie

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D79042
2020-05-13 13:27:29 -07:00

28 lines
1.1 KiB
LLVM

; modify_value will be inlined into main. With just the inliner pass, at most
; some trivial DCE would happen, which in this case doesn't modify post-inlined
; main much.
; In contrast, with the full set of module inliner-related passes, at the end of
; inlining (incl. function cleanups ran after inlining), main will be reduced to
; a 'ret 10'
;
; RUN: opt -passes=inline -S < %s | FileCheck %s --check-prefix=INLINE --check-prefix=CHECK
; RUN: opt -passes=inliner-wrapper -S < %s | FileCheck %s --check-prefix=INLINE --check-prefix=CHECK
; RUN: opt -passes=scc-oz-module-inliner -S < %s | FileCheck %s --check-prefix=MODULE --check-prefix=CHECK
define void @modify_value({i32, float}* %v) {
%f = getelementptr { i32, float }, { i32, float }* %v, i64 0, i32 0
store i32 10, i32* %f
ret void
}
define i32 @main() {
%my_val = alloca {i32, float}
call void @modify_value({i32, float}* %my_val)
%f = getelementptr { i32, float }, { i32, float }* %my_val, i64 0, i32 0
%ret = load i32, i32* %f
ret i32 %ret
}
; CHECK-LABEL: @main
; INLINE-NEXT: %my_val = alloca
; MODULE-NEXT: ret i32 10