mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-21 00:32:23 +00:00
c8613c9089
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164798 91177308-0d34-0410-b5e6-96231b3b80d8
61 lines
1.8 KiB
LLVM
61 lines
1.8 KiB
LLVM
; Test lib call simplification of __memmove_chk calls with various values
|
|
; for dstlen and len.
|
|
;
|
|
; RUN: opt < %s -instcombine -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"
|
|
|
|
%struct.T1 = type { [100 x i32], [100 x i32], [1024 x i8] }
|
|
%struct.T2 = type { [100 x i32], [100 x i32], [1024 x i8] }
|
|
%struct.T3 = type { [100 x i32], [100 x i32], [2048 x i8] }
|
|
|
|
@t1 = common global %struct.T1 zeroinitializer
|
|
@t2 = common global %struct.T2 zeroinitializer
|
|
@t3 = common global %struct.T3 zeroinitializer
|
|
|
|
; Check cases where dstlen >= len.
|
|
|
|
define void @test_simplify1() {
|
|
; CHECK: @test_simplify1
|
|
%dst = bitcast %struct.T1* @t1 to i8*
|
|
%src = bitcast %struct.T2* @t2 to i8*
|
|
|
|
; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i64
|
|
call i8* @__memmove_chk(i8* %dst, i8* %src, i64 1824, i64 1824)
|
|
ret void
|
|
}
|
|
|
|
define void @test_simplify2() {
|
|
; CHECK: @test_simplify2
|
|
%dst = bitcast %struct.T1* @t1 to i8*
|
|
%src = bitcast %struct.T3* @t3 to i8*
|
|
|
|
; CHECK-NEXT: call void @llvm.memmove.p0i8.p0i8.i64
|
|
call i8* @__memmove_chk(i8* %dst, i8* %src, i64 1824, i64 2848)
|
|
ret void
|
|
}
|
|
|
|
; Check cases where dstlen < len.
|
|
|
|
define void @test_no_simplify1() {
|
|
; CHECK: @test_no_simplify1
|
|
%dst = bitcast %struct.T3* @t3 to i8*
|
|
%src = bitcast %struct.T1* @t1 to i8*
|
|
|
|
; CHECK-NEXT: call i8* @__memmove_chk
|
|
call i8* @__memmove_chk(i8* %dst, i8* %src, i64 2848, i64 1824)
|
|
ret void
|
|
}
|
|
|
|
define void @test_no_simplify2() {
|
|
; CHECK: @test_no_simplify2
|
|
%dst = bitcast %struct.T1* @t1 to i8*
|
|
%src = bitcast %struct.T2* @t2 to i8*
|
|
|
|
; CHECK-NEXT: call i8* @__memmove_chk
|
|
call i8* @__memmove_chk(i8* %dst, i8* %src, i64 1024, i64 0)
|
|
ret void
|
|
}
|
|
|
|
declare i8* @__memmove_chk(i8*, i8*, i64, i64)
|