Add support for byval function whose argument is not 32 bit aligned.

To do this it is necessary to add a "always inline" argument to the
memcpy node. For completeness I have also added this node to memmove
and memset.  I have also added getMem* functions, because the extra
argument makes it cumbersome to use getNode and because I get confused
by it :-)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43172 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 28 insertions, 0 deletions

diff --git a/test/CodeGen/X86/byval4.ll b/test/CodeGen/X86/byval4.ll
new file mode 100644
index 0000000..9ce635b
--- /dev/null
+++ b/test/CodeGen/X86/byval4.ll
@@ -0,0 +1,28 @@
+; RUN: llvm-as < %s | llc -march=x86-64 | grep rep.movsl | count 2
+; RUN: llvm-as < %s | llc -march=x86 | grep rep.movsw	 | count 2
+
+%struct.s = type { i16, i16, i16, i16, i16, i16 }
+
+
+define void @g(i16 signext  %a1, i16 signext  %a2, i16 signext  %a3,
+	 i16 signext  %a4, i16 signext  %a5, i16 signext  %a6) {
+entry:
+        %a = alloca %struct.s, align 16
+        %tmp = getelementptr %struct.s* %a, i32 0, i32 0
+        store i16 %a1, i16* %tmp, align 16
+        %tmp2 = getelementptr %struct.s* %a, i32 0, i32 1
+        store i16 %a2, i16* %tmp2, align 16
+        %tmp4 = getelementptr %struct.s* %a, i32 0, i32 2
+        store i16 %a3, i16* %tmp4, align 16
+        %tmp6 = getelementptr %struct.s* %a, i32 0, i32 3
+        store i16 %a4, i16* %tmp6, align 16
+        %tmp8 = getelementptr %struct.s* %a, i32 0, i32 4
+        store i16 %a5, i16* %tmp8, align 16
+        %tmp10 = getelementptr %struct.s* %a, i32 0, i32 5
+        store i16 %a6, i16* %tmp10, align 16
+        call void @f( %struct.s* %a byval )
+        call void @f( %struct.s* %a byval )
+        ret void
+}
+
+declare void @f(%struct.s* byval)