[llvm] [VPlan] Add initial CFG simplification, removing BranchOnCond true. (PR #106748)
Florian Hahn via llvm-commits
llvm-commits at lists.llvm.org
Wed Apr 2 04:14:06 PDT 2025
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@@ -229,50 +211,44 @@ define void @test_if_then(ptr noalias %a, ptr readnone %b) #4 {
; TFA_INTERLEAVE-NEXT: [[ENTRY:.*]]:
; TFA_INTERLEAVE-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64()
; TFA_INTERLEAVE-NEXT: [[TMP1:%.*]] = mul i64 [[TMP0]], 4
-; TFA_INTERLEAVE-NEXT: [[TMP2:%.*]] = sub i64 [[TMP1]], 1
-; TFA_INTERLEAVE-NEXT: [[N_RND_UP:%.*]] = add i64 1025, [[TMP2]]
-; TFA_INTERLEAVE-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP1]]
-; TFA_INTERLEAVE-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]]
-; TFA_INTERLEAVE-NEXT: [[TMP3:%.*]] = call i64 @llvm.vscale.i64()
-; TFA_INTERLEAVE-NEXT: [[TMP4:%.*]] = mul i64 [[TMP3]], 4
-; TFA_INTERLEAVE-NEXT: [[TMP5:%.*]] = call i64 @llvm.vscale.i64()
-; TFA_INTERLEAVE-NEXT: [[TMP6:%.*]] = mul i64 [[TMP5]], 2
+; TFA_INTERLEAVE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64()
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fhahn wrote:
I manually updated the checks as it should just be a simple removal, but the auto-generated checks will lead to a number of renaming changes due to value numbers changing.
https://github.com/llvm/llvm-project/pull/106748
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