[BasicAA] Regenerate test checks

test/Analysis/BasicAA/modref.ll

@@ -1,11 +1,18 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -basic-aa -gvn -dse -S | FileCheck %s
 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
 
 declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture)
 
-declare void @external(i32*) 
+declare void @external(i32*)
 
 define i32 @test0(i8* %P) {
+; CHECK-LABEL: @test0(
+; CHECK-NEXT:    [[A:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    call void @external(i32* [[A]])
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* [[P:%.*]], i8 0, i32 42, i1 false)
+; CHECK-NEXT:    ret i32 0
+;
   %A = alloca i32
   call void @external(i32* %A)
 
@@ -15,13 +22,12 @@ define i32 @test0(i8* %P) {
 
   %B = load i32, i32* %A
   ret i32 %B
-
-; CHECK-LABEL: @test0
-; CHECK: ret i32 0
 }
 
 define i8 @test1() {
-; CHECK-LABEL: @test1
+; CHECK-LABEL: @test1(
+; CHECK-NEXT:    ret i8 2
+;
   %A = alloca i8
   %B = alloca i8
 
@@ -31,107 +37,120 @@ define i8 @test1() {
 
   %C = load i8, i8* %B
   ret i8 %C
-; CHECK: ret i8 2
 }
 
 define i8 @test2(i8* %P) {
-; CHECK-LABEL: @test2
+; CHECK-LABEL: @test2(
+; CHECK-NEXT:    [[P2:%.*]] = getelementptr i8, i8* [[P:%.*]], i32 127
+; CHECK-NEXT:    store i8 1, i8* [[P2]], align 1
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i8(i8* [[P]], i8 2, i8 127, i1 false)
+; CHECK-NEXT:    ret i8 1
+;
   %P2 = getelementptr i8, i8* %P, i32 127
   store i8 1, i8* %P2  ;; Not dead across memset
   call void @llvm.memset.p0i8.i8(i8* %P, i8 2, i8 127, i1 false)
   %A = load i8, i8* %P2
   ret i8 %A
-; CHECK: ret i8 1
 }
 
 define i8 @test2a(i8* %P) {
-; CHECK-LABEL: @test2
+; CHECK-LABEL: @test2a(
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i8(i8* [[P:%.*]], i8 2, i8 127, i1 false)
+; CHECK-NEXT:    ret i8 2
+;
   %P2 = getelementptr i8, i8* %P, i32 126
 
-  ;; FIXME: DSE isn't zapping this dead store.
   store i8 1, i8* %P2  ;; Dead, clobbered by memset.
 
   call void @llvm.memset.p0i8.i8(i8* %P, i8 2, i8 127, i1 false)
   %A = load i8, i8* %P2
   ret i8 %A
-; CHECK-NOT: load
-; CHECK: ret i8 2
 }
 
 define void @test3(i8* %P, i8 %X) {
-; CHECK-LABEL: @test3
+; CHECK-LABEL: @test3(
-; CHECK-NOT: store
+; CHECK-NEXT:    [[P2:%.*]] = getelementptr i8, i8* [[P:%.*]], i32 2
-; CHECK-NOT: %Y
+; CHECK-NEXT:    call void @llvm.lifetime.end.p0i8(i64 1, i8* [[P]])
+; CHECK-NEXT:    store i8 2, i8* [[P2]], align 1
+; CHECK-NEXT:    ret void
+;
   %Y = add i8 %X, 1     ;; Dead, because the only use (the store) is dead.
 
   %P2 = getelementptr i8, i8* %P, i32 2
   store i8 %Y, i8* %P2  ;; Not read by lifetime.end, should be removed.
-; CHECK: store i8 2, i8* %P2
   call void @llvm.lifetime.end.p0i8(i64 1, i8* %P)
   store i8 2, i8* %P2
-; CHECK-NOT: store
   ret void
-; CHECK: ret void
 }
 
 define void @test3a(i8* %P, i8 %X) {
-; CHECK-LABEL: @test3a
+; CHECK-LABEL: @test3a(
+; CHECK-NEXT:    call void @llvm.lifetime.end.p0i8(i64 10, i8* [[P:%.*]])
+; CHECK-NEXT:    ret void
+;
   %Y = add i8 %X, 1     ;; Dead, because the only use (the store) is dead.
 
   %P2 = getelementptr i8, i8* %P, i32 2
   store i8 %Y, i8* %P2
   call void @llvm.lifetime.end.p0i8(i64 10, i8* %P)
   ret void
-; CHECK-NEXT: call void @llvm.lifetime.end.p0i8(i64 10, i8* %P)
-; CHECK-NEXT: ret void
 }
 
 @G1 = external global i32
 @G2 = external global [4000 x i32]
 
 define i32 @test4(i8* %P) {
+; CHECK-LABEL: @test4(
+; CHECK-NEXT:    call void @llvm.memset.p0i8.i32(i8* bitcast ([4000 x i32]* @G2 to i8*), i8 0, i32 4000, i1 false)
+; CHECK-NEXT:    ret i32 0
+;
   %tmp = load i32, i32* @G1
   call void @llvm.memset.p0i8.i32(i8* bitcast ([4000 x i32]* @G2 to i8*), i8 0, i32 4000, i1 false)
   %tmp2 = load i32, i32* @G1
   %sub = sub i32 %tmp2, %tmp
   ret i32 %sub
-; CHECK-LABEL: @test4
-; CHECK-NOT: load
-; CHECK: memset.p0i8.i32
-; CHECK-NOT: load
-; CHECK: ret i32 0
 }
 
 ; Verify that basicaa is handling variable length memcpy, knowing it doesn't
 ; write to G1.
 define i32 @test5(i8* %P, i32 %Len) {
+; CHECK-LABEL: @test5(
+; CHECK-NEXT:    call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([4000 x i32]* @G2 to i8*), i8* bitcast (i32* @G1 to i8*), i32 [[LEN:%.*]], i1 false)
+; CHECK-NEXT:    ret i32 0
+;
   %tmp = load i32, i32* @G1
   call void @llvm.memcpy.p0i8.p0i8.i32(i8* bitcast ([4000 x i32]* @G2 to i8*), i8* bitcast (i32* @G1 to i8*), i32 %Len, i1 false)
   %tmp2 = load i32, i32* @G1
   %sub = sub i32 %tmp2, %tmp
   ret i32 %sub
-; CHECK: @test5
-; CHECK-NOT: load
-; CHECK: memcpy.p0i8.p0i8.i32
-; CHECK-NOT: load
-; CHECK: ret i32 0
 }
 
 define i8 @test6(i8* %p, i8* noalias %a) {
+; CHECK-LABEL: @test6(
+; CHECK-NEXT:    [[X:%.*]] = load i8, i8* [[A:%.*]], align 1
+; CHECK-NEXT:    [[T:%.*]] = va_arg i8* [[P:%.*]], float
+; CHECK-NEXT:    [[Z:%.*]] = add i8 [[X]], [[X]]
+; CHECK-NEXT:    ret i8 [[Z]]
+;
   %x = load i8, i8* %a
   %t = va_arg i8* %p, float
   %y = load i8, i8* %a
   %z = add i8 %x, %y
   ret i8 %z
-; CHECK-LABEL: @test6
-; CHECK: load i8, i8* %a
-; CHECK-NOT: load
-; CHECK: ret
 }
 
 ; PR10628
 declare void @test7decl(i32* nocapture %x)
 define i32 @test7() nounwind uwtable ssp {
+; CHECK-LABEL: @test7(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[X:%.*]] = alloca i32, align 4
+; CHECK-NEXT:    store i32 0, i32* [[X]], align 4
+; CHECK-NEXT:    [[ADD_PTR:%.*]] = getelementptr inbounds i32, i32* [[X]], i64 1
+; CHECK-NEXT:    call void @test7decl(i32* [[ADD_PTR]])
+; CHECK-NEXT:    [[TMP:%.*]] = load i32, i32* [[X]], align 4
+; CHECK-NEXT:    ret i32 [[TMP]]
+;
 entry:
   %x = alloca i32, align 4
   store i32 0, i32* %x, align 4
@@ -139,10 +158,6 @@ entry:
   call void @test7decl(i32* %add.ptr)
   %tmp = load i32, i32* %x, align 4
   ret i32 %tmp
-; CHECK-LABEL: @test7(
-; CHECK: store i32 0
-; CHECK: call void @test7decl
-; CHECK: load i32, i32*
 }
 
 ;; Check that aa correctly handles functions marked with argmemonly
@@ -150,81 +165,92 @@ entry:
 declare i32 @func_argmemonly(i32 * %P) argmemonly
 
 ;; Can not remove redundant load, function may write to it.
-; CHECK-LABEL: @test8(
+
 define i32 @test8(i32 *%P) {
+; CHECK-LABEL: @test8(
+; CHECK-NEXT:    [[V1:%.*]] = load i32, i32* [[P:%.*]], align 4
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @func_argmemonly(i32* [[P]])
+; CHECK-NEXT:    [[V2:%.*]] = load i32, i32* [[P]], align 4
+; CHECK-NEXT:    [[DIFF:%.*]] = sub i32 [[V1]], [[V2]]
+; CHECK-NEXT:    ret i32 [[DIFF]]
+;
   %V1 = load i32, i32* %P
   call i32 @func_argmemonly(i32* %P)
   %V2 = load i32, i32* %P
   %Diff = sub i32 %V1, %V2
   ret i32 %Diff
-  ; CHECK: load
-  ; CHECK: load
-  ; CHECK: sub
-  ; CHECK: ret i32 %Diff
 }
 
 ;; In this case load can be removed, function clobbers only %P2.
-; CHECK-LABEL: @test9(
 define i32 @test9(i32* %P, i32* noalias %P2) {
+; CHECK-LABEL: @test9(
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @func_argmemonly(i32* [[P2:%.*]])
+; CHECK-NEXT:    ret i32 0
+;
   %V1 = load i32, i32* %P
   call i32 @func_argmemonly(i32* %P2)
   %V2 = load i32, i32* %P
   %Diff = sub i32 %V1, %V2
   ret i32 %Diff
-  ; CHECK-NOT: load
-  ; CHECK: ret i32 0
 }
 
 ;; In this case load can *not* be removed. Function clobers only %P2 but it may
 ;; alias with %P.
-; CHECK-LABEL: @test10(
 define i32 @test10(i32* %P, i32* %P2) {
+; CHECK-LABEL: @test10(
+; CHECK-NEXT:    [[V1:%.*]] = load i32, i32* [[P:%.*]], align 4
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @func_argmemonly(i32* [[P2:%.*]])
+; CHECK-NEXT:    [[V2:%.*]] = load i32, i32* [[P]], align 4
+; CHECK-NEXT:    [[DIFF:%.*]] = sub i32 [[V1]], [[V2]]
+; CHECK-NEXT:    ret i32 [[DIFF]]
+;
   %V1 = load i32, i32* %P
   call i32 @func_argmemonly(i32* %P2)
   %V2 = load i32, i32* %P
   %Diff = sub i32 %V1, %V2
   ret i32 %Diff
-  ; CHECK: load
-  ; CHECK: load
-  ; CHECK: sub
-  ; CHECK: ret i32 %Diff
 }
 
-; CHECK-LABEL: @test11(
 define i32 @test11(i32* %P, i32* %P2) {
+; CHECK-LABEL: @test11(
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @func_argmemonly(i32* readonly [[P2:%.*]])
+; CHECK-NEXT:    ret i32 0
+;
   %V1 = load i32, i32* %P
   call i32 @func_argmemonly(i32* readonly %P2)
   %V2 = load i32, i32* %P
   %Diff = sub i32 %V1, %V2
   ret i32 %Diff
-  ; CHECK-NOT: load
+
-  ; CHECK: ret i32 0
 }
 
 declare i32 @func_argmemonly_two_args(i32* %P, i32* %P2) argmemonly
 
-; CHECK-LABEL: @test12(
 define i32 @test12(i32* %P, i32* %P2, i32* %P3) {
+; CHECK-LABEL: @test12(
+; CHECK-NEXT:    [[V1:%.*]] = load i32, i32* [[P:%.*]], align 4
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @func_argmemonly_two_args(i32* readonly [[P2:%.*]], i32* [[P3:%.*]])
+; CHECK-NEXT:    [[V2:%.*]] = load i32, i32* [[P]], align 4
+; CHECK-NEXT:    [[DIFF:%.*]] = sub i32 [[V1]], [[V2]]
+; CHECK-NEXT:    ret i32 [[DIFF]]
+;
   %V1 = load i32, i32* %P
   call i32 @func_argmemonly_two_args(i32* readonly %P2, i32* %P3)
   %V2 = load i32, i32* %P
   %Diff = sub i32 %V1, %V2
   ret i32 %Diff
-  ; CHECK: load
-  ; CHECK: load
-  ; CHECK: sub
-  ; CHECK: ret i32 %Diff
 }
 
-; CHECK-LABEL: @test13(
 define i32 @test13(i32* %P, i32* %P2) {
+; CHECK-LABEL: @test13(
+; CHECK-NEXT:    [[TMP1:%.*]] = call i32 @func_argmemonly(i32* readnone [[P2:%.*]])
+; CHECK-NEXT:    ret i32 0
+;
   %V1 = load i32, i32* %P
   call i32 @func_argmemonly(i32* readnone %P2)
   %V2 = load i32, i32* %P
   %Diff = sub i32 %V1, %V2
   ret i32 %Diff
-  ; CHECK-NOT: load
-  ; CHECK: ret i32 0
 }
 
 declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i1) nounwind