mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-26 07:29:55 +00:00
This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180743 91177308-0d34-0410-b5e6-96231b3b80d8
31 lines
1.4 KiB
LLVM
31 lines
1.4 KiB
LLVM
; RUN: opt < %s -basicaa -dse -S | FileCheck %s
|
|
|
|
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
|
|
target triple = "x86_64-apple-macosx10.8.0"
|
|
|
|
%struct.anon = type { i32, i32, i32 }
|
|
@b = global %struct.anon { i32 1, i32 0, i32 0 }, align 4
|
|
@c = common global i32 0, align 4
|
|
@a = common global %struct.anon zeroinitializer, align 4
|
|
@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
|
|
|
|
declare i32 @printf(i8* nocapture, ...) nounwind
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
|
|
|
|
|
|
; Make sure that the initial memcpy call does not go away
|
|
; because the volatile load is in the way. PR12899
|
|
|
|
; CHECK: main_entry:
|
|
; CHECK-NEXT: tail call void @llvm.memcpy.p0i8.p0i8.i64
|
|
|
|
define i32 @main() nounwind uwtable ssp {
|
|
main_entry:
|
|
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* bitcast (%struct.anon* @b to i8*), i8* bitcast (%struct.anon* @a to i8*), i64 12, i32 4, i1 false)
|
|
%0 = load volatile i32* getelementptr inbounds (%struct.anon* @b, i64 0, i32 0), align 4
|
|
store i32 %0, i32* @c, align 4
|
|
tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* bitcast (%struct.anon* @b to i8*), i8* bitcast (%struct.anon* @a to i8*), i64 12, i32 4, i1 false) nounwind
|
|
%call = tail call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([4 x i8]* @.str, i64 0, i64 0), i32 %0) nounwind
|
|
ret i32 0
|
|
}
|