Sync upstream to r102410.

Re-turn on sdk.

Change-Id: I91a890863989a67243b4d2dfd1ae09b843ebaeaf

2 files changed, 103 insertions, 6 deletions

diff --git a/test/Other/constant-fold-gep.ll b/test/Other/constant-fold-gep.ll
index 5358e1f..ecef9c4 100644
--- a/test/Other/constant-fold-gep.ll
+++ b/test/Other/constant-fold-gep.ll
@@ -21,10 +21,12 @@
 ; PLAIN: %1 = type { double, float, double, double }
 ; PLAIN: %2 = type { i1, i1* }
 ; PLAIN: %3 = type { i64, i64 }
+; PLAIN: %4 = type { i32, i32 }
 ; OPT: %0 = type { i1, double }
 ; OPT: %1 = type { double, float, double, double }
 ; OPT: %2 = type { i1, i1* }
 ; OPT: %3 = type { i64, i64 }
+; OPT: %4 = type { i32, i32 }
 
 ; The automatic constant folder in opt does not have targetdata access, so
 ; it can't fold gep arithmetic, in general. However, the constant folder run
@@ -118,9 +120,19 @@
 ; TO: @N = constant i64* inttoptr (i64 8 to i64*)
 ; TO: @O = constant i64* inttoptr (i64 8 to i64*)
 
-@M = constant i64* getelementptr (i64 *null, i32 1)
-@N = constant i64* getelementptr ({ i64, i64 } *null, i32 0, i32 1)
-@O = constant i64* getelementptr ([2 x i64] *null, i32 0, i32 1)
+@M = constant i64* getelementptr (i64* null, i32 1)
+@N = constant i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1)
+@O = constant i64* getelementptr ([2 x i64]* null, i32 0, i32 1)
+
+; Fold GEP of a GEP. Theoretically some of these cases could be folded
+; without using targetdata, however that's not implemented yet.
+
+; PLAIN: @Z = global i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1)
+; OPT: @Z = global i32* getelementptr (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1)
+; TO: @Z = global i32* getelementptr inbounds ([3 x %0]* @ext, i64 0, i64 1, i32 1)
+
+@ext = external global [3 x { i32, i32 }]
+@Z = global i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1)
 
 ; Duplicate all of the above as function return values rather than
 ; global initializers.
@@ -457,14 +469,33 @@ define i64 @fk() nounwind {
 ; SCEV:   -->  sizeof(i64)
 
 define i64* @fM() nounwind {
-  %t = bitcast i64* getelementptr (i64 *null, i32 1) to i64*
+  %t = bitcast i64* getelementptr (i64* null, i32 1) to i64*
   ret i64* %t
 }
 define i64* @fN() nounwind {
-  %t = bitcast i64* getelementptr ({ i64, i64 } *null, i32 0, i32 1) to i64*
+  %t = bitcast i64* getelementptr ({ i64, i64 }* null, i32 0, i32 1) to i64*
   ret i64* %t
 }
 define i64* @fO() nounwind {
-  %t = bitcast i64* getelementptr ([2 x i64] *null, i32 0, i32 1) to i64*
+  %t = bitcast i64* getelementptr ([2 x i64]* null, i32 0, i32 1) to i64*
   ret i64* %t
 }
+
+; PLAIN: define i32* @fZ() nounwind {
+; PLAIN:   %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
+; PLAIN:   ret i32* %t
+; PLAIN: }
+; OPT: define i32* @fZ() nounwind {
+; OPT:   ret i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1)
+; OPT: }
+; TO: define i32* @fZ() nounwind {
+; TO:   ret i32* getelementptr inbounds ([3 x %0]* @ext, i64 0, i64 1, i32 1)
+; TO: }
+; SCEV: Classifying expressions for: @fZ
+; SCEV:   %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x %4]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
+; SCEV:   -->  ((3 * sizeof(i32)) + @ext)
+
+define i32* @fZ() nounwind {
+  %t = bitcast i32* getelementptr inbounds (i32* getelementptr inbounds ([3 x { i32, i32 }]* @ext, i64 0, i64 1, i32 0), i64 1) to i32*
+  ret i32* %t
+}
diff --git a/test/Other/lint.ll b/test/Other/lint.ll
new file mode 100644
index 0000000..8658495
--- /dev/null
+++ b/test/Other/lint.ll
@@ -0,0 +1,66 @@
+; RUN: opt -lint -disable-output < %s |& FileCheck %s
+target datalayout = "e-p:64:64:64"
+
+declare fastcc void @bar()
+
+define i32 @foo() noreturn {
+; CHECK: Caller and callee calling convention differ
+  call void @bar()
+; CHECK: Null pointer dereference
+  store i32 0, i32* null
+; CHECK: Null pointer dereference
+  %t = load i32* null
+; CHECK: Undef pointer dereference
+  store i32 0, i32* undef
+; CHECK: Undef pointer dereference
+  %u = load i32* undef
+; CHECK: Memory reference address is misaligned
+  %x = inttoptr i32 1 to i32*
+  load i32* %x, align 4
+; CHECK: Division by zero
+  %sd = sdiv i32 2, 0
+; CHECK: Division by zero
+  %ud = udiv i32 2, 0
+; CHECK: Division by zero
+  %sr = srem i32 2, 0
+; CHECK: Division by zero
+  %ur = urem i32 2, 0
+; CHECK: extractelement index out of range
+  %ee = extractelement <4 x i32> zeroinitializer, i32 4
+; CHECK: insertelement index out of range
+  %ie = insertelement <4 x i32> zeroinitializer, i32 0, i32 4
+; CHECK: Shift count out of range
+  %r = lshr i32 0, 32
+; CHECK: Shift count out of range
+  %q = ashr i32 0, 32
+; CHECK: Shift count out of range
+  %l = shl i32 0, 32
+; CHECK: xor(undef, undef)
+  %xx = xor i32 undef, undef
+; CHECK: sub(undef, undef)
+  %xs = sub i32 undef, undef
+  br label %next
+
+next:
+; CHECK: Static alloca outside of entry block
+  %a = alloca i32
+; CHECK: Return statement in function with noreturn attribute
+  ret i32 0
+
+foo:
+  %z = add i32 0, 0
+; CHECK: unreachable immediately preceded by instruction without side effects
+  unreachable
+}
+
+; CHECK: Unnamed function with non-local linkage
+define void @0() nounwind {
+  ret void
+}
+
+; CHECK: va_start called in a non-varargs function
+declare void @llvm.va_start(i8*)
+define void @not_vararg(i8* %p) nounwind {
+  call void @llvm.va_start(i8* %p)
+  ret void
+}