mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
eb9d6d122a
This patch imports constant variables even when they can't be internalized (which results in promotion). This offers some extra constant folding opportunities. Differential revision: https://reviews.llvm.org/D70404
27 lines
1.3 KiB
LLVM
27 lines
1.3 KiB
LLVM
; Test that instruction operands from loads are not cached when
|
|
; processing stores. Reference from @foo to @obj should not be
|
|
; readonly or writeonly
|
|
|
|
; RUN: opt -module-summary %s -o %t.bc
|
|
; RUN: llvm-dis %t.bc -o - | FileCheck %s
|
|
|
|
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 { %struct.Derived* }
|
|
%struct.Derived = type { i32 }
|
|
%struct.Base = type { i32 }
|
|
|
|
@obj = dso_local local_unnamed_addr global %struct.S zeroinitializer, align 8
|
|
|
|
define dso_local %struct.Base* @foo() local_unnamed_addr {
|
|
entry:
|
|
%0 = load %struct.Base*, %struct.Base** bitcast (%struct.S* @obj to %struct.Base**), align 8
|
|
store %struct.Base* null, %struct.Base** bitcast (%struct.S* @obj to %struct.Base**), align 8
|
|
ret %struct.Base* %0
|
|
}
|
|
|
|
; CHECK: ^0 = module:
|
|
; CHECK-NEXT: ^1 = gv: (name: "obj", summaries: (variable: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 1, canAutoHide: 0), varFlags: (readonly: 1, writeonly: 1, constant: 0)))) ; guid =
|
|
; CHECK-NEXT: ^2 = gv: (name: "foo", summaries: (function: (module: ^0, flags: (linkage: external, notEligibleToImport: 0, live: 0, dsoLocal: 1, canAutoHide: 0), insts: 3, refs: (^1)))) ; guid =
|