Revert "[BasicAA] Revert "Revert r218714 - Make better use of zext and sign information.""

This reverts commit r219135 -- still causing miscompiles in SPEC it seems...

llvm-svn: 219432

2 files changed, 0 insertions, 88 deletions

diff --git a/llvm/test/Analysis/BasicAA/phi-aa.ll b/llvm/test/Analysis/BasicAA/phi-aa.ll
index c1100f1d36f..74279e1c4c9 100644
--- a/llvm/test/Analysis/BasicAA/phi-aa.ll
+++ b/llvm/test/Analysis/BasicAA/phi-aa.ll
@@ -39,7 +39,6 @@ return:
 
 ; CHECK-LABEL: pr18068
 ; CHECK: MayAlias: i32* %0, i32* %arrayidx5
-; CHECK: NoAlias: i32* %arrayidx13, i32* %arrayidx5
 
 define i32 @pr18068(i32* %jj7, i32* %j) {
 entry:
diff --git a/llvm/test/Analysis/BasicAA/zext.ll b/llvm/test/Analysis/BasicAA/zext.ll
deleted file mode 100644
index 33984f2474c..00000000000
--- a/llvm/test/Analysis/BasicAA/zext.ll
+++ /dev/null
@@ -1,87 +0,0 @@
-; RUN: opt < %s -basicaa -aa-eval -print-all-alias-modref-info -disable-output 2>&1 | 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-S128"
-target triple = "x86_64-unknown-linux-gnu"
-
-; CHECK-LABEL: test_with_zext
-; CHECK:  NoAlias: i8* %a, i8* %b
-
-define void @test_with_zext() {
-  %1 = tail call i8* @malloc(i64 120)
-  %a = getelementptr inbounds i8* %1, i64 8
-  %2 = getelementptr inbounds i8* %1, i64 16
-  %3 = zext i32 3 to i64
-  %b = getelementptr inbounds i8* %2, i64 %3
-  ret void
-}
-
-; CHECK-LABEL: test_with_lshr
-; CHECK:  NoAlias: i8* %a, i8* %b
-
-define void @test_with_lshr(i64 %i) {
-  %1 = tail call i8* @malloc(i64 120)
-  %a = getelementptr inbounds i8* %1, i64 8
-  %2 = getelementptr inbounds i8* %1, i64 16
-  %3 = lshr i64 %i, 2
-  %b = getelementptr inbounds i8* %2, i64 %3
-  ret void
-}
-
-; CHECK-LABEL: test_with_a_loop
-; CHECK:  NoAlias: i8* %a, i8* %b
-
-define void @test_with_a_loop() {
-  %1 = tail call i8* @malloc(i64 120)
-  %a = getelementptr inbounds i8* %1, i64 8
-  %2 = getelementptr inbounds i8* %1, i64 16
-  br label %for.loop
-
-for.loop:
-  %i = phi i32 [ 0, %0 ], [ %i.next, %for.loop ]
-  %3 = zext i32 %i to i64
-  %b = getelementptr inbounds i8* %2, i64 %3
-  %i.next = add nuw nsw i32 %i, 1
-  %4 = icmp eq i32 %i.next, 10
-  br i1 %4, label %for.loop.exit, label %for.loop
-
-for.loop.exit:
-  ret void
-}
-
-; CHECK-LABEL: test_sign_extension
-; CHECK:  PartialAlias: i64* %b.i64, i8* %a
-
-define void @test_sign_extension(i32 %p) {
-  %1 = tail call i8* @malloc(i64 120)
-  %p.64 = zext i32 %p to i64
-  %a = getelementptr inbounds i8* %1, i64 %p.64
-  %p.minus1 = add i32 %p, -1
-  %p.minus1.64 = zext i32 %p.minus1 to i64
-  %b.i8 = getelementptr inbounds i8* %1, i64 %p.minus1.64
-  %b.i64 = bitcast i8* %b.i8 to i64*
-  ret void
-}
-
-; CHECK-LABEL: test_fe_tools
-; CHECK:  PartialAlias: i32* %a, i32* %b
-
-define void @test_fe_tools([8 x i32]* %values) {
-  br label %reorder
-
-for.loop:
-  %i = phi i32 [ 0, %reorder ], [ %i.next, %for.loop ]
-  %idxprom = zext i32 %i to i64
-  %b = getelementptr inbounds [8 x i32]* %values, i64 0, i64 %idxprom
-  %i.next = add nuw nsw i32 %i, 1
-  %1 = icmp eq i32 %i.next, 10
-  br i1 %1, label %for.loop.exit, label %for.loop
-
-reorder:
-  %a = getelementptr inbounds [8 x i32]* %values, i64 0, i64 1
-  br label %for.loop
-
-for.loop.exit:
-  ret void
-}
-
-; Function Attrs: nounwind
-declare noalias i8* @malloc(i64)