It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/PowerPC/subc.ll b/test/CodeGen/PowerPC/subc.ll
new file mode 100644
index 0000000..3624791
--- /dev/null
+++ b/test/CodeGen/PowerPC/subc.ll
@@ -0,0 +1,26 @@
+; All of these should be codegen'd without loading immediates
+; RUN: llvm-upgrade < %s | llvm-as | llc -march=ppc32 -o %t -f
+; RUN: grep subfc %t | wc -l | grep 1
+; RUN: grep subfe %t | wc -l | grep 1
+; RUN: grep subfze %t | wc -l | grep 1
+; RUN: grep subfme %t | wc -l | grep 1
+; RUN: grep subfic %t | wc -l | grep 2
+implementation   ; Functions:
+
+long %sub_ll(long %a, long %b) {
+entry:
+	%tmp.2 = sub long %a, %b		; <long> [#uses=1]
+	ret long %tmp.2
+}
+
+long %sub_l_5(long %a) {
+entry:
+	%tmp.1 = sub long 5, %a		; <long> [#uses=1]
+	ret long %tmp.1
+}
+
+long %sub_l_m5(long %a) {
+entry:
+	%tmp.1 = sub long -5, %a		; <long> [#uses=1]
+	ret long %tmp.1
+}