mirror of
https://github.com/RPCS3/llvm.git
synced 2024-12-24 13:06:56 +00:00
ce49ab2b05
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204876 91177308-0d34-0410-b5e6-96231b3b80d8
47 lines
1.7 KiB
LLVM
47 lines
1.7 KiB
LLVM
; RUN: opt < %s -basicaa -memcpyopt -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.foo = type { i8, [7 x i8], i32 }
|
|
|
|
define i32 @test1(%struct.foo* nocapture %foobie) nounwind noinline ssp uwtable {
|
|
%bletch.sroa.1 = alloca [7 x i8], align 1
|
|
%1 = getelementptr inbounds %struct.foo* %foobie, i64 0, i32 0
|
|
store i8 98, i8* %1, align 4
|
|
%2 = getelementptr inbounds %struct.foo* %foobie, i64 0, i32 1, i64 0
|
|
%3 = getelementptr inbounds [7 x i8]* %bletch.sroa.1, i64 0, i64 0
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %2, i8* %3, i64 7, i32 1, i1 false)
|
|
%4 = getelementptr inbounds %struct.foo* %foobie, i64 0, i32 2
|
|
store i32 20, i32* %4, align 4
|
|
ret i32 undef
|
|
|
|
; Check that the memcpy is removed.
|
|
; CHECK-LABEL: @test1(
|
|
; CHECK-NOT: call void @llvm.memcpy
|
|
}
|
|
|
|
define void @test2(i8* sret noalias nocapture %out, i8* %in) nounwind noinline ssp uwtable {
|
|
call void @llvm.lifetime.start(i64 8, i8* %in)
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %out, i8* %in, i64 8, i32 1, i1 false)
|
|
ret void
|
|
|
|
; Check that the memcpy is removed.
|
|
; CHECK-LABEL: @test2(
|
|
; CHECK-NOT: call void @llvm.memcpy
|
|
}
|
|
|
|
define void @test3(i8* sret noalias nocapture %out, i8* %in) nounwind noinline ssp uwtable {
|
|
call void @llvm.lifetime.start(i64 4, i8* %in)
|
|
call void @llvm.memcpy.p0i8.p0i8.i64(i8* %out, i8* %in, i64 8, i32 1, i1 false)
|
|
ret void
|
|
|
|
; Check that the memcpy is not removed.
|
|
; CHECK-LABEL: @test3(
|
|
; CHECK: call void @llvm.memcpy
|
|
}
|
|
|
|
declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
|
|
|
|
declare void @llvm.lifetime.start(i64, i8* nocapture) nounwind
|