[llvm] r253363 - Vector of pointers in function attributes calculation

[Elena Demikhovsky via llvm-commits]

Author: delena
Date: Tue Nov 17 13:30:51 2015
New Revision: 253363

URL: http://llvm.org/viewvc/llvm-project?rev=253363&view=rev
Log:
Vector of pointers in function attributes calculation

While setting function attributes we check all instructions that may access memory. For a call instruction we check all arguments. The special check is required for pointers.
I added vector-of-pointers to the call arguments types that should be checked.

Differential Revision: http://reviews.llvm.org/D14693


Modified:
    llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp
    llvm/trunk/test/Transforms/FunctionAttrs/readattrs.ll

Modified: llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp?rev=253363&r1=253362&r2=253363&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp Tue Nov 17 13:30:51 2015
@@ -154,7 +154,7 @@ static MemoryAccessKind checkFunctionMem
       for (CallSite::arg_iterator CI = CS.arg_begin(), CE = CS.arg_end();
            CI != CE; ++CI) {
         Value *Arg = *CI;
-        if (!Arg->getType()->isPointerTy())
+        if (!Arg->getType()->isPtrOrPtrVectorTy())
           continue;
 
         AAMDNodes AAInfo;

Modified: llvm/trunk/test/Transforms/FunctionAttrs/readattrs.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/FunctionAttrs/readattrs.ll?rev=253363&r1=253362&r2=253363&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/FunctionAttrs/readattrs.ll (original)
+++ llvm/trunk/test/Transforms/FunctionAttrs/readattrs.ll Tue Nov 17 13:30:51 2015
@@ -65,3 +65,41 @@ entry:
   store i32 10, i32* %call, align 4
   ret void
 }
+
+; CHECK: declare void @llvm.masked.scatter
+declare void @llvm.masked.scatter.v4i32(<4 x i32>%val, <4 x i32*>, i32, <4 x i1>)
+
+; CHECK-NOT: readnone
+; CHECK-NOT: readonly
+; CHECK: define void @test9
+define void @test9(<4 x i32*> %ptrs, <4 x i32>%val) {
+  call void @llvm.masked.scatter.v4i32(<4 x i32>%val, <4 x i32*> %ptrs, i32 4, <4 x i1><i1 true, i1 false, i1 true, i1 false>)
+  ret void
+}
+
+; CHECK: declare <4 x i32> @llvm.masked.gather
+declare <4 x i32> @llvm.masked.gather.v4i32(<4 x i32*>, i32, <4 x i1>, <4 x i32>)
+; CHECK: readonly
+; CHECK: define <4 x i32> @test10
+define <4 x i32> @test10(<4 x i32*> %ptrs) {
+  %res = call <4 x i32> @llvm.masked.gather.v4i32(<4 x i32*> %ptrs, i32 4, <4 x i1><i1 true, i1 false, i1 true, i1 false>, <4 x i32>undef)
+  ret <4 x i32> %res
+}
+
+; CHECK: declare <4 x i32> @test11_1
+declare <4 x i32> @test11_1(<4 x i32*>) argmemonly nounwind readonly
+; CHECK: readonly
+; CHECK-NOT: readnone
+; CHECK: define <4 x i32> @test11_2
+define <4 x i32> @test11_2(<4 x i32*> %ptrs) {
+  %res = call <4 x i32> @test11_1(<4 x i32*> %ptrs)
+  ret <4 x i32> %res
+}
+
+declare <4 x i32> @test12_1(<4 x i32*>) argmemonly nounwind
+; CHECK-NOT: readnone
+; CHECK: define <4 x i32> @test12_2
+define <4 x i32> @test12_2(<4 x i32*> %ptrs) {
+  %res = call <4 x i32> @test12_1(<4 x i32*> %ptrs)
+  ret <4 x i32> %res
+}