75432ce3c9
Add new intrinsics: - llvm.allow.sanitize.address - llvm.allow.sanitize.thread - llvm.allow.sanitize.memory - llvm.allow.sanitize.hwaddress These intrinsics return true if the corresponding sanitizer is enabled for the function, and false otherwise. They are lowered by LowerAllowCheckPass to constant booleans based on the corresponding sanitize_* function attributes. LowerAllowCheckPass is now "required" to run on functions with optnone to ensure correct lowering at O0. The LowerAllowCheckPass already performs similar duties for @llvm.allow.runtime.check and @llvm.allow.ubsan.check, although with subtly different semantics (based on profiles and/or sampling). In this case, we want to make the true/false decision based on if any one of address/memory/thread sanitization is enabled.
71 lines
1.8 KiB
LLVM
71 lines
1.8 KiB
LLVM
; RUN: opt < %s -passes=lower-allow-check -S | FileCheck %s
|
|
; RUN: opt < %s -passes=lower-allow-check -lower-allow-check-random-rate=0 -S | FileCheck %s
|
|
|
|
declare i1 @llvm.allow.sanitize.address()
|
|
declare i1 @llvm.allow.sanitize.thread()
|
|
declare i1 @llvm.allow.sanitize.memory()
|
|
declare i1 @llvm.allow.sanitize.hwaddress()
|
|
|
|
define i1 @test_address() sanitize_address {
|
|
; CHECK-LABEL: @test_address(
|
|
; CHECK-NEXT: ret i1 true
|
|
%1 = call i1 @llvm.allow.sanitize.address()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_no_sanitize_address() {
|
|
; CHECK-LABEL: @test_no_sanitize_address(
|
|
; CHECK-NEXT: ret i1 false
|
|
%1 = call i1 @llvm.allow.sanitize.address()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_address_but_no_thread() sanitize_address {
|
|
; CHECK-LABEL: @test_address_but_no_thread(
|
|
; CHECK-NEXT: ret i1 false
|
|
%1 = call i1 @llvm.allow.sanitize.thread()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_thread() sanitize_thread {
|
|
; CHECK-LABEL: @test_thread(
|
|
; CHECK-NEXT: ret i1 true
|
|
%1 = call i1 @llvm.allow.sanitize.thread()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_no_sanitize_thread() {
|
|
; CHECK-LABEL: @test_no_sanitize_thread(
|
|
; CHECK-NEXT: ret i1 false
|
|
%1 = call i1 @llvm.allow.sanitize.thread()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_memory() sanitize_memory {
|
|
; CHECK-LABEL: @test_memory(
|
|
; CHECK-NEXT: ret i1 true
|
|
%1 = call i1 @llvm.allow.sanitize.memory()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_no_sanitize_memory() {
|
|
; CHECK-LABEL: @test_no_sanitize_memory(
|
|
; CHECK-NEXT: ret i1 false
|
|
%1 = call i1 @llvm.allow.sanitize.memory()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_hwaddress() sanitize_hwaddress {
|
|
; CHECK-LABEL: @test_hwaddress(
|
|
; CHECK-NEXT: ret i1 true
|
|
%1 = call i1 @llvm.allow.sanitize.hwaddress()
|
|
ret i1 %1
|
|
}
|
|
|
|
define i1 @test_no_sanitize_hwaddress() {
|
|
; CHECK-LABEL: @test_no_sanitize_hwaddress(
|
|
; CHECK-NEXT: ret i1 false
|
|
%1 = call i1 @llvm.allow.sanitize.hwaddress()
|
|
ret i1 %1
|
|
}
|