Fix pointer info on PPC byval stores
For PPC64 SVR (and Darwin), the stores that take byval aggregate parameters
from registers into the stack frame had MachinePointerInfo objects with
incorrect offsets. These offsets are relative to the object itself, not to the
stack frame base.
This fixes self hosting on PPC64 when compiling with -enable-aa-sched-mi.
llvm-svn: 199763
diff --git a/llvm/test/CodeGen/PowerPC/byval-agg-info.ll b/llvm/test/CodeGen/PowerPC/byval-agg-info.ll
new file mode 100644
index 0000000..89ad8e4
--- /dev/null
+++ b/llvm/test/CodeGen/PowerPC/byval-agg-info.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s -print-after=prologepilog >%t 2>&1 && FileCheck <%t %s
+target datalayout = "E-m:e-i64:64-n32:64"
+target triple = "powerpc64-unknown-linux-gnu"
+
+%struct.anon = type { i32, i32 }
+
+declare void @foo(%struct.anon* %v)
+define void @test(i32 %a, i32 %b, %struct.anon* byval nocapture %v) {
+entry:
+ call void @foo(%struct.anon* %v)
+ ret void
+}
+
+; Make sure that the MMO on the store has no offset from the byval
+; variable itself (we used to have mem:ST8[%v+64]).
+; CHECK: STD %X5<kill>, 176, %X1; mem:ST8[%v](align=16)
+