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authorRichard Sandiford <rsandifo@linux.vnet.ibm.com>2013-07-19 16:44:32 +0000
committerRichard Sandiford <rsandifo@linux.vnet.ibm.com>2013-07-19 16:44:32 +0000
commit6dae7ae7659444efc2149852e366ba97d3a6e449 (patch)
tree9eb2d0526a3bb0f1b370eae15400e5e38211b14a /test/CodeGen/SystemZ
parentc7c7e1502a62123a5e54fe6ff7da490bf26d319e (diff)
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[SystemZ] Add tests for ALHSIK and ALGHSIK
The insn definitions themselves crept into r186689, sorry. This should be the last of the distinct-ops instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186690 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/SystemZ')
-rw-r--r--test/CodeGen/SystemZ/int-add-16.ll71
1 files changed, 71 insertions, 0 deletions
diff --git a/test/CodeGen/SystemZ/int-add-16.ll b/test/CodeGen/SystemZ/int-add-16.ll
index 409729f089..36cc13e5fc 100644
--- a/test/CodeGen/SystemZ/int-add-16.ll
+++ b/test/CodeGen/SystemZ/int-add-16.ll
@@ -20,3 +20,74 @@ define i64 @f1(i64 %a, i64 %b, i64 %c, i64 %d, i64 *%ptr) {
%low = extractelement <2 x i64> %addv, i32 1
ret i64 %low
}
+
+; Test addition of 1.
+define void @f2(i64 %a, i64 %b, i128 *%ptr) {
+; CHECK-LABEL: f2:
+; CHECK: alghsik {{%r[0-5]}}, %r3, 1
+; CHECK: alcgr
+; CHECK: br %r14
+ %x1 = insertelement <2 x i64> undef, i64 %a, i32 0
+ %x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
+ %x = bitcast <2 x i64> %x2 to i128
+ %add = add i128 %x, 1
+ store i128 %add, i128 *%ptr
+ ret void
+}
+
+; Test the upper end of the ALGHSIK range.
+define void @f3(i64 %a, i64 %b, i128 *%ptr) {
+; CHECK-LABEL: f3:
+; CHECK: alghsik {{%r[0-5]}}, %r3, 32767
+; CHECK: alcgr
+; CHECK: br %r14
+ %x1 = insertelement <2 x i64> undef, i64 %a, i32 0
+ %x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
+ %x = bitcast <2 x i64> %x2 to i128
+ %add = add i128 %x, 32767
+ store i128 %add, i128 *%ptr
+ ret void
+}
+
+; Test the next value up, which should use ALGFI instead.
+define void @f4(i64 %a, i64 %b, i128 *%ptr) {
+; CHECK-LABEL: f4:
+; CHECK: algfi %r3, 32768
+; CHECK: alcgr
+; CHECK: br %r14
+ %x1 = insertelement <2 x i64> undef, i64 %a, i32 0
+ %x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
+ %x = bitcast <2 x i64> %x2 to i128
+ %add = add i128 %x, 32768
+ store i128 %add, i128 *%ptr
+ ret void
+}
+
+; Test the lower end of the ALGHSIK range.
+define void @f5(i64 %a, i64 %b, i128 *%ptr) {
+; CHECK-LABEL: f5:
+; CHECK: alghsik {{%r[0-5]}}, %r3, -32768
+; CHECK: alcgr
+; CHECK: br %r14
+ %x1 = insertelement <2 x i64> undef, i64 %a, i32 0
+ %x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
+ %x = bitcast <2 x i64> %x2 to i128
+ %add = add i128 %x, -32768
+ store i128 %add, i128 *%ptr
+ ret void
+}
+
+; Test the next value down, which cannot use either ALGHSIK or ALGFI.
+define void @f6(i64 %a, i64 %b, i128 *%ptr) {
+; CHECK-LABEL: f6:
+; CHECK-NOT: alghsik
+; CHECK-NOT: algfi
+; CHECK: alcgr
+; CHECK: br %r14
+ %x1 = insertelement <2 x i64> undef, i64 %a, i32 0
+ %x2 = insertelement <2 x i64> %x1, i64 %b, i32 1
+ %x = bitcast <2 x i64> %x2 to i128
+ %add = add i128 %x, -32769
+ store i128 %add, i128 *%ptr
+ ret void
+}