Imported Upstream version 6.0.0.172

Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd

external/llvm/test/CodeGen/PowerPC/2007-09-07-LoadStoreIdxForms.ll

@@ -0,0 +1,39 @@
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc64-- -O1 | FileCheck %s
+; RUN: llc -verify-machineinstrs < %s -mtriple=ppc64-- | FileCheck --check-prefix=CHECK-OPT  %s
+
+        %struct.__db_region = type { %struct.__mutex_t, [4 x i8], %struct.anon, i32, [1 x i32] }
+        %struct.__mutex_t = type { i32 }
+        %struct.anon = type { i64, i64 }
+
+define void @foo() {
+entry:
+        %ttype = alloca i32, align 4            ; <i32*> [#uses=1]
+        %regs = alloca [1024 x %struct.__db_region], align 16           ; <[1024 x %struct.__db_region]*> [#uses=0]
+        %tmp = load i32, i32* %ttype, align 4                ; <i32> [#uses=1]
+        %tmp1 = call i32 (...) @bork( i32 %tmp )               ; <i32> [#uses=0]
+        ret void
+
+; CHECK: @foo
+; CHECK: lwzx
+; CHECK: blr
+; CHECK-OPT: @foo
+; CHECK-OPT: lwz
+; CHECK-OPT: blr
+}
+
+define signext i32 @test(i32* noalias nocapture readonly %b, i32 signext %n)  {
+entry:
+  %idxprom = sext i32 %n to i64
+  %arrayidx = getelementptr inbounds i32, i32* %b, i64 %idxprom
+  %0 = load i32, i32* %arrayidx, align 4
+  %mul = mul nsw i32 %0, 7
+  ret i32 %mul
+
+; CHECK-OPT: @test
+; CHECK-OPT: lwzx
+; CHECK-OPT: blr
+
+}
+
+
+declare i32 @bork(...)