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[GlobalOpt] Extend CleanupPointerRootUsers to handle CE users.
Extend CleanupPointerRootUsers to iterate over a worklist, add users of constant expressions to the worklist to enable additional cleanups. Reviewed By: nikic Differential Revision: https://reviews.llvm.org/D144468
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34 changes: 34 additions & 0 deletions
34
llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users-ptrtoint-add-constexpr.ll
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py | ||
; RUN: opt -passes=globalopt -S %s | FileCheck %s | ||
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%struct.global.20ptr = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr } | ||
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@global.20ptr = internal unnamed_addr global %struct.global.20ptr zeroinitializer | ||
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declare i32 @fn0() | ||
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declare i32 @fn1() | ||
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define void @stores_single_use_gep_constexpr() { | ||
; CHECK-LABEL: @stores_single_use_gep_constexpr( | ||
; CHECK-NEXT: entry: | ||
; CHECK-NEXT: store ptr @fn0, ptr @global.20ptr, align 8 | ||
; CHECK-NEXT: store ptr @fn1, ptr getelementptr inbounds ([[STRUCT_GLOBAL_20PTR:%.*]], ptr @global.20ptr, i64 0, i32 1), align 8 | ||
; CHECK-NEXT: ret void | ||
; | ||
entry: | ||
store ptr @fn0, ptr getelementptr inbounds (%struct.global.20ptr, ptr @global.20ptr, i64 0, i32 0), align 8 | ||
store ptr @fn1, ptr getelementptr inbounds (%struct.global.20ptr, ptr @global.20ptr, i64 0, i32 1), align 8 | ||
ret void | ||
} | ||
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define void @stores_ptrtoint_constexpr() { | ||
; CHECK-LABEL: @stores_ptrtoint_constexpr( | ||
; CHECK-NEXT: entry: | ||
; CHECK-NEXT: store i32 0, ptr inttoptr (i64 add (i64 ptrtoint (ptr @global.20ptr to i64), i64 200) to ptr), align 8 | ||
; CHECK-NEXT: ret void | ||
; | ||
entry: | ||
store i32 0, ptr inttoptr (i64 add (i64 ptrtoint (ptr @global.20ptr to i64), i64 200) to ptr), align 8 | ||
ret void | ||
} |