"mtcrf $FXM, $rS", BrMCRX>,
PPC970_MicroCode, PPC970_Unit_CRU;
+let hasExtraSrcRegAllocReq = 1 in // to enable post-ra anti-dep breaking.
def MFOCRF8: XFXForm_5a<31, 19, (outs g8rc:$rT), (ins crbitm:$FXM),
"mfocrf $rT, $FXM", SprMFCR>,
PPC970_DGroup_First, PPC970_Unit_CRU;
"mtcrf $FXM, $rS", BrMCRX>,
PPC970_MicroCode, PPC970_Unit_CRU;
+let hasExtraSrcRegAllocReq = 1 in // to enable post-ra anti-dep breaking.
def MFOCRF: XFXForm_5a<31, 19, (outs gprc:$rT), (ins crbitm:$FXM),
"mfocrf $rT, $FXM", SprMFCR>,
PPC970_DGroup_First, PPC970_Unit_CRU;
CodeGenOpt::Level OptLevel,
TargetSubtargetInfo::AntiDepBreakMode& Mode,
RegClassVector& CriticalPathRCs) const {
- // FIXME: It would be best to use TargetSubtargetInfo::ANTIDEP_ALL here,
- // but we can't because we can't reassign the cr registers. There is a
- // dependence between the cr register and the RLWINM instruction used
- // to extract its value which the anti-dependency breaker can't currently
- // see. Maybe we should make a late-expanded pseudo to encode this dependency.
- // (the relevant code is in PPCDAGToDAGISel::SelectSETCC)
-
- Mode = TargetSubtargetInfo::ANTIDEP_CRITICAL;
+ Mode = TargetSubtargetInfo::ANTIDEP_ALL;
CriticalPathRCs.clear();
else
CriticalPathRCs.push_back(&PPC::GPRCRegClass);
- CriticalPathRCs.push_back(&PPC::F8RCRegClass);
- CriticalPathRCs.push_back(&PPC::VRRCRegClass);
-
return OptLevel >= CodeGenOpt::Default;
}
; CHECK: std
; Make sure that we're not saving VRSAVE on non-Darwin:
; CHECK-NOT: mfspr
-; CHECK: stfd
-; CHECK: stvx
-; CHECK: addis [[REG:[0-9]+]], 2, env_sigill@toc@ha
-; CHECK: std 31, env_sigill@toc@l([[REG]])
-; CHECK: addi [[REG]], [[REG]], env_sigill@toc@l
-; CHECK: std [[REG]], [[OFF:[0-9]+]](31) # 8-byte Folded Spill
-; CHECK: std 1, 16([[REG]])
-; CHECK: std 2, 24([[REG]])
+; CHECK-DAG: stfd
+; CHECK-DAG: stvx
+
+; CHECK-DAG: addis [[REG:[0-9]+]], 2, env_sigill@toc@ha
+; CHECK-DAG: std 31, env_sigill@toc@l([[REG]])
+; CHECK-DAG: addi [[REGA:[0-9]+]], [[REG]], env_sigill@toc@l
+; CHECK-DAG: std [[REGA]], [[OFF:[0-9]+]](31) # 8-byte Folded Spill
+; CHECK-DAG: std 1, 16([[REGA]])
+; CHECK-DAG: std 2, 24([[REGA]])
; CHECK: bcl 20, 31, .LBB1_1
; CHECK: li 3, 1
; CHECK: #EH_SjLj_Setup .LBB1_1
; CHECK: addis [[REG:[0-9]+]], 2, env_sigill@toc@ha
; CHECK: std 31, env_sigill@toc@l([[REG]])
-; CHECK: addi [[REG]], [[REG]], env_sigill@toc@l
-; CHECK: std [[REG]], [[OFF:[0-9]+]](31) # 8-byte Folded Spill
-; CHECK: std 1, 16([[REG]])
-; CHECK: std 2, 24([[REG]])
-; CHECK: std 30, 32([[REG]])
+; CHECK: addi [[REGB:[0-9]+]], [[REG]], env_sigill@toc@l
+; CHECK-DAG: std [[REGB]], [[OFF:[0-9]+]](31) # 8-byte Folded Spill
+; CHECK-DAG: std 1, 16([[REGB]])
+; CHECK-DAG: std 2, 24([[REGB]])
+; CHECK-DAG: std 30, 32([[REGB]])
; CHECK: bcl 20, 31,
; CHECK: blr