Files
clang-p2996/llvm/test/Transforms/GlobalMerge/basic.ll
Eli Friedman 0887cf9cab [GlobalMerge] Allow merging globals with arbitrary alignment.
Instead of depending on implicit padding from the structure layout code,
use a packed struct and emit the padding explicitly.

Differential Revision: https://reviews.llvm.org/D49710

llvm-svn: 337961
2018-07-25 20:58:01 +00:00

21 lines
851 B
LLVM

; RUN: opt -global-merge -global-merge-max-offset=100 -S -o - %s | FileCheck %s
target datalayout = "e-p:64:64"
target triple = "x86_64-unknown-linux-gnu"
; CHECK: @_MergedGlobals = private global <{ i32, i32 }> <{ i32 1, i32 2 }>, align 4
; CHECK: @a = internal alias i32, getelementptr inbounds (<{ i32, i32 }>, <{ i32, i32 }>* @_MergedGlobals, i32 0, i32 0)
@a = internal global i32 1
; CHECK: @b = internal alias i32, getelementptr inbounds (<{ i32, i32 }>, <{ i32, i32 }>* @_MergedGlobals, i32 0, i32 1)
@b = internal global i32 2
define void @use() {
; CHECK: load i32, i32* getelementptr inbounds (<{ i32, i32 }>, <{ i32, i32 }>* @_MergedGlobals, i32 0, i32 0)
%x = load i32, i32* @a
; CHECK: load i32, i32* getelementptr inbounds (<{ i32, i32 }>, <{ i32, i32 }>* @_MergedGlobals, i32 0, i32 1)
%y = load i32, i32* @b
ret void
}