derek.holloway
7502bf64a4
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99 lines
3.1 KiB
LLVM
99 lines
3.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
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; RUN: opt < %s -passes='inferattrs,alloc-token<mode=increment>' -S | FileCheck %s
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target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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declare ptr @malloc(i64)
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declare ptr @calloc(i64, i64)
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declare ptr @realloc(ptr, i64)
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declare ptr @_Znwm(i64)
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declare ptr @_Znam(i64)
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declare void @free(ptr)
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declare void @_ZdlPv(ptr)
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declare i32 @foobar(i64)
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; Test basic allocation call rewriting
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define ptr @test_basic_rewriting() sanitize_alloc_token {
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; CHECK-LABEL: define ptr @test_basic_rewriting(
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; CHECK-SAME: ) #[[ATTR5:[0-9]+]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[TMP0:%.*]] = call ptr @__alloc_token_malloc(i64 64, i64 0)
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; CHECK-NEXT: [[TMP1:%.*]] = call ptr @__alloc_token_calloc(i64 8, i64 8, i64 1)
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; CHECK-NEXT: [[TMP2:%.*]] = call ptr @__alloc_token_realloc(ptr [[TMP0]], i64 128, i64 2)
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; CHECK-NEXT: ret ptr [[TMP2]]
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;
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entry:
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%ptr1 = call ptr @malloc(i64 64)
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%ptr2 = call ptr @calloc(i64 8, i64 8)
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%ptr3 = call ptr @realloc(ptr %ptr1, i64 128)
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ret ptr %ptr3
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}
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; Test C++ operator rewriting
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define ptr @test_cpp_operators() sanitize_alloc_token {
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; CHECK-LABEL: define ptr @test_cpp_operators(
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; CHECK-SAME: ) #[[ATTR5]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[TMP0:%.*]] = call ptr @__alloc_token__Znwm(i64 32, i64 3)
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; CHECK-NEXT: [[TMP1:%.*]] = call ptr @__alloc_token__Znam(i64 64, i64 4)
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; CHECK-NEXT: ret ptr [[TMP0]]
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;
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entry:
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%ptr1 = call ptr @_Znwm(i64 32)
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%ptr2 = call ptr @_Znam(i64 64)
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ret ptr %ptr1
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}
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; Functions without sanitize_alloc_token do not get instrumented
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define ptr @without_attribute() {
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; CHECK-LABEL: define ptr @without_attribute() {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[PTR:%.*]] = call ptr @malloc(i64 16)
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; CHECK-NEXT: ret ptr [[PTR]]
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;
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entry:
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%ptr = call ptr @malloc(i64 16)
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ret ptr %ptr
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}
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; Test that free/delete are untouched
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define void @test_free_untouched(ptr %ptr) sanitize_alloc_token {
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; CHECK-LABEL: define void @test_free_untouched(
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; CHECK-SAME: ptr [[PTR:%.*]]) #[[ATTR5]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: call void @free(ptr [[PTR]])
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; CHECK-NEXT: call void @_ZdlPv(ptr [[PTR]])
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; CHECK-NEXT: ret void
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;
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entry:
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call void @free(ptr %ptr)
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call void @_ZdlPv(ptr %ptr)
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ret void
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}
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; Non-allocation functions are untouched
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define i32 @no_allocations(i32 %x) sanitize_alloc_token {
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; CHECK-LABEL: define i32 @no_allocations(
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; CHECK-SAME: i32 [[X:%.*]]) #[[ATTR5]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[RESULT:%.*]] = call i32 @foobar(i64 42)
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; CHECK-NEXT: ret i32 [[RESULT]]
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;
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entry:
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%result = call i32 @foobar(i64 42)
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ret i32 %result
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}
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; Test that tail calls are preserved
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define ptr @test_tail_call_preserved() sanitize_alloc_token {
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; CHECK-LABEL: define ptr @test_tail_call_preserved(
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; CHECK-SAME: ) #[[ATTR5]] {
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; CHECK-NEXT: [[ENTRY:.*:]]
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; CHECK-NEXT: [[TMP0:%.*]] = tail call ptr @__alloc_token_malloc(i64 42, i64 5)
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; CHECK-NEXT: ret ptr [[TMP0]]
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;
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entry:
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%result = tail call ptr @malloc(i64 42)
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ret ptr %result
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}
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