mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
c96a29c643
Summary: Disable the always importing of constants introduced in D70404 by default under a new internal option, since it is causing order of magnitude compile time regressions during the thin link. Will continue investigating why the regressions occur. Reviewers: evgeny777, wmi Subscribers: mehdi_amini, inglorion, hiraditya, steven_wu, dexonsmith, arphaman, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D73724
49 lines
2.1 KiB
LLVM
49 lines
2.1 KiB
LLVM
; Check that we promote constant object in the source module and import it
|
|
; even when it is referenced in some other GV initializer and/or is used
|
|
; by store instructions.
|
|
; RUN: opt -thinlto-bc %s -o %t1.bc
|
|
; RUN: opt -thinlto-bc %p/Inputs/import-constant.ll -o %t2.bc
|
|
; RUN: llvm-lto2 run -save-temps %t1.bc %t2.bc -o %t-out \
|
|
; RUN: -import-constants-with-refs \
|
|
; RUN: -r=%t1.bc,main,plx \
|
|
; RUN: -r=%t1.bc,_Z6getObjv,l \
|
|
; RUN: -r=%t2.bc,_Z6getObjv,pl \
|
|
; RUN: -r=%t2.bc,val,pl \
|
|
; RUN: -r=%t2.bc,outer,pl
|
|
; RUN: llvm-dis %t-out.2.1.promote.bc -o - | FileCheck %s --check-prefix=PROMOTE
|
|
; RUN: llvm-dis %t-out.1.3.import.bc -o - | FileCheck %s --check-prefix=IMPORT
|
|
; RUN: llvm-dis %t-out.1.4.opt.bc -o - | FileCheck %s --check-prefix=OPT
|
|
|
|
; Check that variable has been promoted in the source module
|
|
; PROMOTE: @_ZL3Obj.llvm.{{.*}} = hidden constant %struct.S { i32 4, i32 8, i32* @val }
|
|
|
|
; @outer is a write-only variable, so it's been converted to zeroinitializer.
|
|
; IMPORT: @outer = internal local_unnamed_addr global %struct.Q zeroinitializer
|
|
; IMPORT-NEXT: @_ZL3Obj.llvm.{{.*}} = available_externally hidden constant %struct.S { i32 4, i32 8, i32* @val }
|
|
; IMPORT-NEXT: @val = external dso_local global i32
|
|
|
|
; OPT: @outer = internal unnamed_addr global %struct.Q zeroinitializer
|
|
|
|
; OPT: define dso_local i32 @main()
|
|
; OPT-NEXT: entry:
|
|
; OPT-NEXT: store %struct.S* null, %struct.S** getelementptr inbounds (%struct.Q, %struct.Q* @outer, i64 0, i32 0)
|
|
; OPT-NEXT: ret i32 12
|
|
|
|
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-unknown-linux-gnu"
|
|
|
|
%struct.S = type { i32, i32, i32* }
|
|
|
|
define dso_local i32 @main() local_unnamed_addr {
|
|
entry:
|
|
%call = tail call %struct.S* @_Z6getObjv()
|
|
%d = getelementptr inbounds %struct.S, %struct.S* %call, i64 0, i32 0
|
|
%0 = load i32, i32* %d, align 8
|
|
%v = getelementptr inbounds %struct.S, %struct.S* %call, i64 0, i32 1
|
|
%1 = load i32, i32* %v, align 4
|
|
%add = add nsw i32 %1, %0
|
|
ret i32 %add
|
|
}
|
|
|
|
declare dso_local %struct.S* @_Z6getObjv() local_unnamed_addr
|