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29 changes: 18 additions & 11 deletions llvm/test/Instrumentation/SanitizerCoverage/inline-bool-flag.ll
Original file line number Diff line number Diff line change
@@ -1,30 +1,37 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --version 4
; Test -sanitizer-coverage-inline-bool-flag=1
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 -sanitizer-coverage-inline-bool-flag=1 -S | FileCheck %s

; CHECK: $foo = comdat nodeduplicate
; CHECK: @__sancov_gen_ = private global [1 x i1] zeroinitializer, section "__sancov_bools", comdat($foo), align 1{{$}}
; CHECK: @__start___sancov_bools = extern_weak hidden global i1
; CHECK-NEXT: @__stop___sancov_bools = extern_weak hidden global i1
; CHECK: @llvm.used = appending global [1 x ptr] [ptr @sancov.module_ctor_bool_flag], section "llvm.metadata"
; CHECK: @llvm.compiler.used = appending global [1 x ptr] [ptr @__sancov_gen_], section "llvm.metadata"

target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
target triple = "x86_64-unknown-linux-gnu"
;.
; CHECK: @__sancov_lowest_stack = external thread_local(initialexec) global i64
; CHECK: @__sancov_gen_ = private global [1 x i1] zeroinitializer, section "__sancov_bools", comdat($foo), align 1
; CHECK: @__start___sancov_bools = extern_weak hidden global i1
; CHECK: @__stop___sancov_bools = extern_weak hidden global i1
; CHECK: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 2, ptr @sancov.module_ctor_bool_flag, ptr @sancov.module_ctor_bool_flag }]
; CHECK: @llvm.used = appending global [1 x ptr] [ptr @sancov.module_ctor_bool_flag], section "llvm.metadata"
; CHECK: @llvm.compiler.used = appending global [1 x ptr] [ptr @__sancov_gen_], section "llvm.metadata"
;.
define void @foo() {
; CHECK-LABEL: @foo(
; CHECK-LABEL: define void @foo() comdat {
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load i1, ptr @__sancov_gen_, align 1, !nosanitize ![[#EMPTY:]]
; CHECK-NEXT: [[TMP0:%.*]] = load i1, ptr @__sancov_gen_, align 1, !nosanitize [[META0:![0-9]+]]
; CHECK-NEXT: [[TMP1:%.*]] = icmp eq i1 [[TMP0]], false
; CHECK-NEXT: br i1 [[TMP1]], label [[TMP2:%.*]], label [[TMP3:%.*]]
; CHECK: 2:
; CHECK-NEXT: store i1 true, ptr @__sancov_gen_, align 1, !nosanitize ![[#EMPTY:]]
; CHECK-NEXT: store i1 true, ptr @__sancov_gen_, align 1, !nosanitize [[META0]]
; CHECK-NEXT: br label [[TMP3]]
; CHECK: 3:
; CHECK-NEXT: ret void
;
entry:
ret void
}
; CHECK: call void @__sanitizer_cov_bool_flag_init(ptr @__start___sancov_bools, ptr @__stop___sancov_bools)

; CHECK: ![[#EMPTY]] = !{}
;.
; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind }
;.
; CHECK: [[META0]] = !{}
;.
92 changes: 72 additions & 20 deletions llvm/test/Instrumentation/SanitizerCoverage/stack-depth.ll
Original file line number Diff line number Diff line change
@@ -1,43 +1,95 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals all --version 4
; This check verifies that stack depth instrumentation works correctly.
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 \
; RUN: -sanitizer-coverage-stack-depth -S | FileCheck %s
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 \
; RUN: -sanitizer-coverage-stack-depth -sanitizer-coverage-trace-pc-guard \
; RUN: -S | FileCheck %s
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=1 -sanitizer-coverage-stack-depth -S | FileCheck %s --check-prefixes=L1
; RUN: opt < %s -passes='module(sancov-module)' -sanitizer-coverage-level=3 -sanitizer-coverage-stack-depth -S -sanitizer-coverage-trace-pc-guard | FileCheck %s --check-prefixes=L3

target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

; CHECK: @__sancov_lowest_stack = thread_local(initialexec) global i64 -1
@__sancov_lowest_stack = thread_local global i64 0, align 8

;.
; L1: @__sancov_lowest_stack = thread_local(initialexec) global i64 -1, align 8
;.
; L3: @__sancov_lowest_stack = thread_local(initialexec) global i64 -1, align 8
; L3: @__sancov_gen_ = private global [1 x i32] zeroinitializer, section "__sancov_guards", comdat($foo), align 4
; L3: @__sancov_gen_.1 = private global [1 x i32] zeroinitializer, section "__sancov_guards", comdat($bar), align 4
; L3: @__sancov_gen_.2 = private global [1 x i32] zeroinitializer, section "__sancov_guards", comdat($_ZTW21__sancov_lowest_stack), align 4
; L3: @__start___sancov_guards = extern_weak hidden global i32
; L3: @__stop___sancov_guards = extern_weak hidden global i32
; L3: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 2, ptr @sancov.module_ctor_trace_pc_guard, ptr @sancov.module_ctor_trace_pc_guard }]
; L3: @llvm.used = appending global [1 x ptr] [ptr @sancov.module_ctor_trace_pc_guard], section "llvm.metadata"
; L3: @llvm.compiler.used = appending global [3 x ptr] [ptr @__sancov_gen_, ptr @__sancov_gen_.1, ptr @__sancov_gen_.2], section "llvm.metadata"
;.
define i32 @foo() {
; L1-LABEL: define i32 @foo() {
; L1-NEXT: entry:
; L1-NEXT: ret i32 7
;
; L3-LABEL: define i32 @foo() comdat {
; L3-NEXT: entry:
; L3-NEXT: call void @__sanitizer_cov_trace_pc_guard(ptr @__sancov_gen_) #[[ATTR2:[0-9]+]]
; L3-NEXT: ret i32 7
;
entry:
; CHECK-LABEL: define i32 @foo
; CHECK-NOT: call ptr @llvm.frameaddress.p0(i32 0)
; CHECK-NOT: @__sancov_lowest_stack
; CHECK: ret i32 7

ret i32 7
}

define i32 @bar() {
; L1-LABEL: define i32 @bar() {
; L1-NEXT: entry:
; L1-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
; L1-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
; L1-NEXT: [[TMP2:%.*]] = load i64, ptr @__sancov_lowest_stack, align 8, !nosanitize [[META0:![0-9]+]]
; L1-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP1]], [[TMP2]]
; L1-NEXT: br i1 [[TMP3]], label [[TMP4:%.*]], label [[TMP5:%.*]]
; L1: 4:
; L1-NEXT: store i64 [[TMP1]], ptr @__sancov_lowest_stack, align 8, !nosanitize [[META0]]
; L1-NEXT: br label [[TMP5]]
; L1: 5:
; L1-NEXT: [[CALL:%.*]] = call i32 @foo()
; L1-NEXT: ret i32 [[CALL]]
;
; L3-LABEL: define i32 @bar() comdat {
; L3-NEXT: entry:
; L3-NEXT: call void @__sanitizer_cov_trace_pc_guard(ptr @__sancov_gen_.1) #[[ATTR2]]
; L3-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0)
; L3-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64
; L3-NEXT: [[TMP2:%.*]] = load i64, ptr @__sancov_lowest_stack, align 8, !nosanitize [[META0:![0-9]+]]
; L3-NEXT: [[TMP3:%.*]] = icmp ult i64 [[TMP1]], [[TMP2]]
; L3-NEXT: br i1 [[TMP3]], label [[TMP4:%.*]], label [[TMP5:%.*]]
; L3: 4:
; L3-NEXT: store i64 [[TMP1]], ptr @__sancov_lowest_stack, align 8, !nosanitize [[META0]]
; L3-NEXT: br label [[TMP5]]
; L3: 5:
; L3-NEXT: [[CALL:%.*]] = call i32 @foo()
; L3-NEXT: ret i32 [[CALL]]
;
entry:
; CHECK-LABEL: define i32 @bar
; CHECK: [[framePtr:%[^ \t]+]] = call ptr @llvm.frameaddress.p0(i32 0)
; CHECK: [[frameInt:%[^ \t]+]] = ptrtoint ptr [[framePtr]] to [[intType:i[0-9]+]]
; CHECK: [[lowest:%[^ \t]+]] = load [[intType]], ptr @__sancov_lowest_stack
; CHECK: [[cmp:%[^ \t]+]] = icmp ult [[intType]] [[frameInt]], [[lowest]]
; CHECK: br i1 [[cmp]], label %[[ifLabel:[^ \t]+]], label
; CHECK: [[ifLabel]]:
; CHECK: store [[intType]] [[frameInt]], ptr @__sancov_lowest_stack
; CHECK: %call = call i32 @foo()
; CHECK: ret i32 %call

%call = call i32 @foo()
ret i32 %call
}

define weak_odr hidden ptr @_ZTW21__sancov_lowest_stack() {
; L1-LABEL: define weak_odr hidden ptr @_ZTW21__sancov_lowest_stack() {
; L1-NEXT: ret ptr @__sancov_lowest_stack
;
; L3-LABEL: define weak_odr hidden ptr @_ZTW21__sancov_lowest_stack() comdat {
; L3-NEXT: call void @__sanitizer_cov_trace_pc_guard(ptr @__sancov_gen_.2) #[[ATTR2]]
; L3-NEXT: ret ptr @__sancov_lowest_stack
;
ret ptr @__sancov_lowest_stack
}
;.
; L1: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
;.
; L3: attributes #[[ATTR0:[0-9]+]] = { nocallback nofree nosync nounwind willreturn memory(none) }
; L3: attributes #[[ATTR1:[0-9]+]] = { nounwind }
; L3: attributes #[[ATTR2]] = { nomerge }
;.
; L1: [[META0]] = !{}
;.
; L3: [[META0]] = !{}
;.