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-rw-r--r--llvm/lib/Target/X86/X86ISelLowering.cpp14
-rw-r--r--llvm/test/CodeGen/X86/atomic-ops-ancient-64.ll43
2 files changed, 57 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 10538ffc27f..fe8cebca942 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -16360,6 +16360,20 @@ void X86TargetLowering::ReplaceNodeResults(SDNode *N,
Results.push_back(EFLAGS.getValue(1));
return;
}
+ case ISD::ATOMIC_SWAP:
+ case ISD::ATOMIC_LOAD_ADD:
+ case ISD::ATOMIC_LOAD_SUB:
+ case ISD::ATOMIC_LOAD_AND:
+ case ISD::ATOMIC_LOAD_OR:
+ case ISD::ATOMIC_LOAD_XOR:
+ case ISD::ATOMIC_LOAD_NAND:
+ case ISD::ATOMIC_LOAD_MIN:
+ case ISD::ATOMIC_LOAD_MAX:
+ case ISD::ATOMIC_LOAD_UMIN:
+ case ISD::ATOMIC_LOAD_UMAX:
+ // Delegate to generic TypeLegalization. Situations we can really handle
+ // should have already been dealt with by X86AtomicExpand.cpp.
+ break;
case ISD::ATOMIC_LOAD: {
ReplaceATOMIC_LOAD(N, Results, DAG);
return;
diff --git a/llvm/test/CodeGen/X86/atomic-ops-ancient-64.ll b/llvm/test/CodeGen/X86/atomic-ops-ancient-64.ll
new file mode 100644
index 00000000000..18749b90287
--- /dev/null
+++ b/llvm/test/CodeGen/X86/atomic-ops-ancient-64.ll
@@ -0,0 +1,43 @@
+; RUN: llc -mtriple=i386-linux-gnu %s -o - | FileCheck %s
+
+define i64 @test_add(i64* %addr, i64 %inc) {
+; CHECK-LABEL: test_add:
+; CHECK: calll __sync_fetch_and_add_8
+ %old = atomicrmw add i64* %addr, i64 %inc seq_cst
+ ret i64 %old
+}
+
+define i64 @test_sub(i64* %addr, i64 %inc) {
+; CHECK-LABEL: test_sub:
+; CHECK: calll __sync_fetch_and_sub_8
+ %old = atomicrmw sub i64* %addr, i64 %inc seq_cst
+ ret i64 %old
+}
+
+define i64 @test_and(i64* %andr, i64 %inc) {
+; CHECK-LABEL: test_and:
+; CHECK: calll __sync_fetch_and_and_8
+ %old = atomicrmw and i64* %andr, i64 %inc seq_cst
+ ret i64 %old
+}
+
+define i64 @test_or(i64* %orr, i64 %inc) {
+; CHECK-LABEL: test_or:
+; CHECK: calll __sync_fetch_and_or_8
+ %old = atomicrmw or i64* %orr, i64 %inc seq_cst
+ ret i64 %old
+}
+
+define i64 @test_xor(i64* %xorr, i64 %inc) {
+; CHECK-LABEL: test_xor:
+; CHECK: calll __sync_fetch_and_xor_8
+ %old = atomicrmw xor i64* %xorr, i64 %inc seq_cst
+ ret i64 %old
+}
+
+define i64 @test_nand(i64* %nandr, i64 %inc) {
+; CHECK-LABEL: test_nand:
+; CHECK: calll __sync_fetch_and_nand_8
+ %old = atomicrmw nand i64* %nandr, i64 %inc seq_cst
+ ret i64 %old
+}
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