[llvm] [VPlan] Run CSE closer to VPlan::execute. (PR #160572)

[Ramkumar Ramachandra via llvm-commits]

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@@ -109,36 +109,35 @@ define void @test_widen_exp_v2(ptr noalias %p2, ptr noalias %p, i64 %n) #5 {
 ; TFA_INTERLEAVE-NEXT:    [[TMP11:%.*]] = insertelement <2 x double> poison, double [[TMP9]], i32 0
 ; TFA_INTERLEAVE-NEXT:    [[TMP12:%.*]] = insertelement <2 x double> [[TMP11]], double [[TMP9]], i32 1
 ; TFA_INTERLEAVE-NEXT:    [[TMP14:%.*]] = fcmp ogt <2 x double> [[TMP12]], zeroinitializer
-; TFA_INTERLEAVE-NEXT:    [[PREDPHI:%.*]] = select <2 x i1> [[TMP14]], <2 x double> zeroinitializer, <2 x double> splat (double 1.000000e+00)
 ; TFA_INTERLEAVE-NEXT:    [[PREDPHI3:%.*]] = select <2 x i1> [[TMP14]], <2 x double> zeroinitializer, <2 x double> splat (double 1.000000e+00)
 ; TFA_INTERLEAVE-NEXT:    [[TMP19:%.*]] = extractelement <2 x i1> [[ACTIVE_LANE_MASK]], i32 0
 ; TFA_INTERLEAVE-NEXT:    br i1 [[TMP19]], label [[PRED_STORE_IF:%.*]], label [[PRED_STORE_CONTINUE:%.*]]
 ; TFA_INTERLEAVE:       pred.store.if:
-; TFA_INTERLEAVE-NEXT:    [[TMP20:%.*]] = extractelement <2 x double> [[PREDPHI]], i32 0
+; TFA_INTERLEAVE-NEXT:    [[TMP20:%.*]] = extractelement <2 x double> [[PREDPHI3]], i32 0
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artagnon wrote:

Can you unstage changes after this one?

https://github.com/llvm/llvm-project/pull/160572