[llvm] [VPlan] Add BranchOnMultiCond, use for early exit plans. (PR #172750)

[via llvm-commits]

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@@ -36,10 +36,9 @@ define i64 @same_exit_block_pre_inc_use1() #1 {
 ; CHECK-NEXT:    [[TMP8:%.*]] = freeze <vscale x 16 x i1> [[TMP16]]
 ; CHECK-NEXT:    [[TMP17:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1(<vscale x 16 x i1> [[TMP8]])
 ; CHECK-NEXT:    [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT3]], [[N_VEC]]
-; CHECK-NEXT:    [[TMP19:%.*]] = or i1 [[TMP17]], [[TMP18]]
-; CHECK-NEXT:    br i1 [[TMP19]], label [[MIDDLE_SPLIT:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
-; CHECK:       middle.split:
-; CHECK-NEXT:    br i1 [[TMP17]], label [[VECTOR_EARLY_EXIT:%.*]], label [[MIDDLE_BLOCK:%.*]]
+; CHECK-NEXT:    br i1 [[TMP17]], label [[VECTOR_EARLY_EXIT:%.*]], label [[MIDDLE_BLOCK]]
+; CHECK:       vector.body.cond.1:
+; CHECK-NEXT:    br i1 [[TMP18]], label [[MIDDLE_BLOCK1:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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ayalz wrote:

This exit successor should be MIDDLE_BLOCK, retaining the name for that block, to be clearer and reduce diff.

https://github.com/llvm/llvm-project/pull/172750