[SystemZ] Add atomicrmw tests for i128 (NFC).

Review: Ulrich Weigand

Author: JonPsson

llvm/test/CodeGen/SystemZ/atomicrmw-ops-i128.ll

@@ -0,0 +1,103 @@
+; Test i128 atomicrmw operations.
+;
+; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z15 | FileCheck %s
+
+; Check register exchange.
+define i128 @f1(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f1:
+; CHECK: brasl %r14, __sync_lock_test_and_set_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw xchg ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check addition of a variable.
+define i128 @f2(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f2:
+; CHECK: brasl %r14, __sync_fetch_and_add_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw add ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check subtraction of a variable.
+define i128 @f3(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f3:
+; CHECK: brasl %r14, __sync_fetch_and_sub_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw sub ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check AND of a variable.
+define i128 @f4(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f4:
+; CHECK: brasl %r14, __sync_fetch_and_and_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw and ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check NAND of a variable.
+define i128 @f5(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f5:
+; CHECK: brasl %r14, __sync_fetch_and_nand_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw nand ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check OR of a variable.
+define i128 @f6(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f6:
+; CHECK: brasl %r14, __sync_fetch_and_or_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw or ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check XOR of a variable.
+define i128 @f7(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f7:
+; CHECK: brasl %r14, __sync_fetch_and_xor_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw xor ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check signed minimum.
+define i128 @f8(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f8:
+; CHECK: brasl %r14, __sync_fetch_and_min_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw min ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check signed maximum.
+define i128 @f9(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f9:
+; CHECK: brasl %r14, __sync_fetch_and_max_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw max ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check unsigned minimum.
+define i128 @f10(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f10:
+; CHECK: brasl %r14, __sync_fetch_and_umin_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw umin ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+
+; Check unsigned maximum.
+define i128 @f11(i128 %dummy, ptr %src, i128 %b) {
+; CHECK-LABEL: f11:
+; CHECK: brasl %r14, __sync_fetch_and_umax_16@PLT
+; CHECK: br %r14
+  %res = atomicrmw umax ptr %src, i128 %b seq_cst
+  ret i128 %res
+}
+

llvm/test/CodeGen/SystemZ/cmpxchg-06.ll

@@ -1,4 +1,4 @@
-; Test 64-bit compare and swap.
+; Test 128-bit compare and swap.
 ;
 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s