case SystemZ::SelectF128:
return emitSelect(MI, MBB);
+ case SystemZ::CondStore8Mux:
+ return emitCondStore(MI, MBB, SystemZ::STCMux, 0, false);
+ case SystemZ::CondStore8MuxInv:
+ return emitCondStore(MI, MBB, SystemZ::STCMux, 0, true);
+ case SystemZ::CondStore16Mux:
+ return emitCondStore(MI, MBB, SystemZ::STHMux, 0, false);
+ case SystemZ::CondStore16MuxInv:
+ return emitCondStore(MI, MBB, SystemZ::STHMux, 0, true);
case SystemZ::CondStore8:
return emitCondStore(MI, MBB, SystemZ::STC, 0, false);
case SystemZ::CondStore8Inv:
def Select32 : SelectWrapper<GR32>;
def Select64 : SelectWrapper<GR64>;
-defm CondStore8 : CondStores<GR32, nonvolatile_truncstorei8,
- nonvolatile_anyextloadi8, bdxaddr20only>;
-defm CondStore16 : CondStores<GR32, nonvolatile_truncstorei16,
- nonvolatile_anyextloadi16, bdxaddr20only>;
-defm CondStore32 : CondStores<GR32, nonvolatile_store,
- nonvolatile_load, bdxaddr20only>;
+// We don't define 32-bit Mux stores because the low-only STOC should
+// always be used if possible.
+defm CondStore8Mux : CondStores<GRX32, nonvolatile_truncstorei8,
+ nonvolatile_anyextloadi8, bdxaddr20only>,
+ Requires<[FeatureHighWord]>;
+defm CondStore16Mux : CondStores<GRX32, nonvolatile_truncstorei16,
+ nonvolatile_anyextloadi16, bdxaddr20only>,
+ Requires<[FeatureHighWord]>;
+defm CondStore8 : CondStores<GR32, nonvolatile_truncstorei8,
+ nonvolatile_anyextloadi8, bdxaddr20only>;
+defm CondStore16 : CondStores<GR32, nonvolatile_truncstorei16,
+ nonvolatile_anyextloadi16, bdxaddr20only>;
+defm CondStore32 : CondStores<GR32, nonvolatile_store,
+ nonvolatile_load, bdxaddr20only>;
defm : CondStores64<CondStore8, CondStore8Inv, nonvolatile_truncstorei8,
nonvolatile_anyextloadi8, bdxaddr20only>;
store i8 %trunc, i8 *%ptr
ret void
}
+
+; Like f2, but with a conditional store.
+define void @f3(float %val, i8 *%ptr, i32 %which) {
+; CHECK-LABEL: f3:
+; CHECK: cijlh %r3, 0,
+; CHECK: lgdr [[REG:%r[0-5]]], %f0
+; CHECK: stch [[REG]], 0(%r2)
+; CHECK: br %r14
+ %int = bitcast float %val to i32
+ %trunc = trunc i32 %int to i8
+ %old = load i8 *%ptr
+ %cmp = icmp eq i32 %which, 0
+ %res = select i1 %cmp, i8 %trunc, i8 %old
+ store i8 %res, i8 *%ptr
+ ret void
+}
+
+; ...and again with 16-bit memory.
+define void @f4(float %val, i16 *%ptr, i32 %which) {
+; CHECK-LABEL: f4:
+; CHECK: cijlh %r3, 0,
+; CHECK: lgdr [[REG:%r[0-5]]], %f0
+; CHECK: sthh [[REG]], 0(%r2)
+; CHECK: br %r14
+ %int = bitcast float %val to i32
+ %trunc = trunc i32 %int to i16
+ %old = load i16 *%ptr
+ %cmp = icmp eq i32 %which, 0
+ %res = select i1 %cmp, i16 %trunc, i16 %old
+ store i16 %res, i16 *%ptr
+ ret void
+}