add testcase for 128-bit add/sub

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37170 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 39 insertions, 0 deletions

diff --git a/test/CodeGen/Generic/i128-addsub.ll b/test/CodeGen/Generic/i128-addsub.ll
new file mode 100644
index 0000000000..10f0acc363
--- /dev/null
+++ b/test/CodeGen/Generic/i128-addsub.ll
@@ -0,0 +1,39 @@
+; RUN: llvm-as < %s | llc
+
+define void @test_add(i64 %AL, i64 %AH, i64 %BL, i64 %BH, i64* %RL, i64* %RH) {
+entry:
+	%tmp1 = zext i64 %AL to i128		; <i128> [#uses=1]
+	%tmp23 = zext i64 %AH to i128		; <i128> [#uses=1]
+	%tmp4 = shl i128 %tmp23, 64		; <i128> [#uses=1]
+	%tmp5 = or i128 %tmp4, %tmp1		; <i128> [#uses=1]
+	%tmp67 = zext i64 %BL to i128		; <i128> [#uses=1]
+	%tmp89 = zext i64 %BH to i128		; <i128> [#uses=1]
+	%tmp11 = shl i128 %tmp89, 64		; <i128> [#uses=1]
+	%tmp12 = or i128 %tmp11, %tmp67		; <i128> [#uses=1]
+	%tmp15 = add i128 %tmp12, %tmp5		; <i128> [#uses=2]
+	%tmp1617 = trunc i128 %tmp15 to i64		; <i64> [#uses=1]
+	store i64 %tmp1617, i64* %RL
+	%tmp21 = lshr i128 %tmp15, 64		; <i128> [#uses=1]
+	%tmp2122 = trunc i128 %tmp21 to i64		; <i64> [#uses=1]
+	store i64 %tmp2122, i64* %RH
+	ret void
+}
+
+define void @test_sub(i64 %AL, i64 %AH, i64 %BL, i64 %BH, i64* %RL, i64* %RH) {
+entry:
+	%tmp1 = zext i64 %AL to i128		; <i128> [#uses=1]
+	%tmp23 = zext i64 %AH to i128		; <i128> [#uses=1]
+	%tmp4 = shl i128 %tmp23, 64		; <i128> [#uses=1]
+	%tmp5 = or i128 %tmp4, %tmp1		; <i128> [#uses=1]
+	%tmp67 = zext i64 %BL to i128		; <i128> [#uses=1]
+	%tmp89 = zext i64 %BH to i128		; <i128> [#uses=1]
+	%tmp11 = shl i128 %tmp89, 64		; <i128> [#uses=1]
+	%tmp12 = or i128 %tmp11, %tmp67		; <i128> [#uses=1]
+	%tmp15 = sub i128 %tmp5, %tmp12		; <i128> [#uses=2]
+	%tmp1617 = trunc i128 %tmp15 to i64		; <i64> [#uses=1]
+	store i64 %tmp1617, i64* %RL
+	%tmp21 = lshr i128 %tmp15, 64		; <i128> [#uses=1]
+	%tmp2122 = trunc i128 %tmp21 to i64		; <i64> [#uses=1]
+	store i64 %tmp2122, i64* %RH
+	ret void
+}