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Add a couple new testcases.

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llvm-svn: 84385
This commit is contained in:
Nick Lewycky 2009-10-18 00:42:07 +00:00
parent 1ed26100a4
commit d21c892821
2 changed files with 30 additions and 0 deletions
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17
test/Analysis/BasicAA/memintrinsic-src.ll Normal file
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; RUN: opt -S -gvn -dse < %s | FileCheck %s
declare void @llvm.memcpy.i8(i8*, i8*, i8, i32)
define i8 @test1() {
; CHECK: @test1
%A = alloca i8
%B = alloca i8
store i8 2, i8* %B ;; Not written to by memcpy
call void @llvm.memcpy.i8(i8* %A, i8* %B, i8 -1, i32 0)
%C = load i8* %B
ret i8 %C
; CHECK-NEXT: ret i8 2
}

13
test/Analysis/BasicAA/memintrisic-size.ll Normal file
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; RUN: opt -S -gvn < %s | FileCheck %s
declare void @llvm.memset.i8(i8*, i8, i8, i32)
define i8 @test(i8* %P) {
%P2 = getelementptr i8* %P, i32 1000
store i8 1, i8* %P2 ;; Not dead across memset
call void @llvm.memset.i8(i8* %P, i8 2, i8 127, i32 0)
%A = load i8* %P2
ret i8 %A
; CHECK: ret i8 1
}