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Merge tests into modref.ll. Also add a test for r84174 at Chris' behest!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84400 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky 2009-10-18 04:41:36 +00:00
parent 28717a8a60
commit 15d3c05adf
3 changed files with 41 additions and 31 deletions
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17
test/Analysis/BasicAA/memintrinsic-src.ll
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@ -1,17 +0,0 @@
; 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
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@ -1,13 +0,0 @@
; 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
}

42
test/Analysis/BasicAA/modref.ll
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@ -1,6 +1,9 @@
; RUN: opt < %s -basicaa -gvn -S | FileCheck %s
; RUN: opt < %s -basicaa -gvn -dse -S | FileCheck %s
declare void @llvm.memset.i32(i8*, i8, i32, i32)
declare void @llvm.memset.i8(i8*, i8, i8, i32)
declare void @llvm.memcpy.i8(i8*, i8*, i8, i32)
declare void @llvm.lifetime.end(i64, i8* nocapture)
declare void @external(i32*)
@ -19,3 +22,40 @@ define i32 @test0(i8* %P) {
; CHECK: ret i32 0
}
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: ret i8 2
}
define i8 @test2(i8* %P) {
; CHECK: @test2
%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
}
define void @test3(i8* %P) {
; CHECK: @test3
%P2 = getelementptr i8* %P, i32 2
store i8 1, i8* %P2 ;; Not read by lifetime.end
; CHECK: store
call void @llvm.lifetime.end(i64 1, i8* %P)
store i8 2, i8* %P2
; CHECK-NOT: store
ret void
; CHECK: ret void
}