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dd4a1a3fb6
In a recent patch we introduced a problem with abstract attributes that were assumed dead at some point. Since `Attributor::updateAA` was introduced in 95e0d28b71e42c9b7cd77c96f728311981a021f6, we did not remember the dependence on the liveness AA when an abstract attribute was assumed dead and therefore not updated. Explicit reproducer added in liveness.ll. --- Single run of the Attributor module and then CGSCC pass (oldPM) for SPASS/clause.c (~10k LLVM-IR loc): Before: ``` calls to allocation functions: 509242 (345483/s) temporary memory allocations: 98666 (66937/s) peak heap memory consumption: 18.60MB peak RSS (including heaptrack overhead): 103.29MB total memory leaked: 269.10KB ``` After: ``` calls to allocation functions: 529332 (355494/s) temporary memory allocations: 102107 (68574/s) peak heap memory consumption: 19.40MB peak RSS (including heaptrack overhead): 102.79MB total memory leaked: 269.10KB ``` Difference: ``` calls to allocation functions: 20090 (1339333/s) temporary memory allocations: 3441 (229400/s) peak heap memory consumption: 801.45KB peak RSS (including heaptrack overhead): 0B total memory leaked: 0B ```
42 lines
1.2 KiB
LLVM
42 lines
1.2 KiB
LLVM
; RUN: opt < %s -attributor -attributor-annotate-decl-cs -attributor-max-iterations=2 -S | FileCheck %s
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; RUN: opt < %s -attributor -attributor-annotate-decl-cs -attributor-max-iterations=3 -S | FileCheck %s
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; RUN: opt < %s -attributor -attributor-annotate-decl-cs -attributor-max-iterations=4 -S | FileCheck %s
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; RUN: opt < %s -attributor -attributor-annotate-decl-cs -attributor-max-iterations=2147483647 -S | FileCheck %s
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; CHECK-NOT: Function
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; CHECK: declare i32 @foo1()
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; CHECK-NOT: Function
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; CHECK: declare i32 @foo2()
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; CHECK-NOT: Function
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; CHECK: declare i32 @foo3()
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declare i32 @foo1()
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declare i32 @foo2()
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declare i32 @foo3()
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; CHECK-NOT: Function
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; CHECK: define internal i32 @bar() {
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; CHECK-NEXT: %1 = call i32 @foo1()
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; CHECK-NEXT: %2 = call i32 @foo2()
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; CHECK-NEXT: %3 = call i32 @foo3()
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; CHECK-NEXT: ret i32 undef
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; CHECK-NEXT: }
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define internal i32 @bar() {
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%1 = call i32 @foo1()
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%2 = call i32 @foo2()
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%3 = call i32 @foo3()
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ret i32 1
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}
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; CHECK-NOT: Function
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; CHECK: define i32 @baz() {
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; CHECK-NEXT: %1 = call i32 @bar()
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; CHECK-NEXT: ret i32 0
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; CHECK-NEXT: }
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define i32 @baz() {
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%1 = call i32 @bar()
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ret i32 0
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}
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; We should never derive anything here
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; CHECK-NOT: attributes
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