Imported Upstream version 5.18.0.247

Former-commit-id: 2d6af2e4ed0eda5cbdc2946446ef7718456ad190

external/llvm/test/Transforms/MemCpyOpt/memmove.ll

@@ -1,40 +0,0 @@
-; RUN: opt < %s -basicaa -memcpyopt -S | FileCheck %s
-; These memmoves should get optimized to memcpys.
-
-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"
-target triple = "x86_64-apple-darwin9.0"
-
-declare void @llvm.memmove.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
-
-define i8* @test1(i8* nocapture %src) nounwind {
-entry:
-; CHECK-LABEL: @test1(
-; CHECK: call void @llvm.memcpy
-
-  %malloccall = tail call i8* @malloc(i32 trunc (i64 mul nuw (i64 ptrtoint (i8* getelementptr (i8, i8* null, i32 1) to i64), i64 13) to i32))
-  %call3 = bitcast i8* %malloccall to [13 x i8]*
-  %call3.sub = getelementptr inbounds [13 x i8], [13 x i8]* %call3, i64 0, i64 0
-  tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %call3.sub, i8* %src, i64 13, i32 1, i1 false)
-  ret i8* %call3.sub
-}
-declare noalias i8* @malloc(i32)
-
-
-define void @test2(i8* %P) nounwind {
-entry:
-; CHECK-LABEL: @test2(
-; CHECK: call void @llvm.memcpy
-  %add.ptr = getelementptr i8, i8* %P, i64 16
-  tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %P, i8* %add.ptr, i64 16, i32 1, i1 false)
-  ret void
-}
-
-; This cannot be optimize because the src/dst really do overlap.
-define void @test3(i8* %P) nounwind {
-entry:
-; CHECK-LABEL: @test3(
-; CHECK: call void @llvm.memmove
-  %add.ptr = getelementptr i8, i8* %P, i64 16
-  tail call void @llvm.memmove.p0i8.p0i8.i64(i8* %P, i8* %add.ptr, i64 17, i32 1, i1 false)
-  ret void
-}