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Disable inlining between sanitized and non-sanitized functions.

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Inlining between functions with different values of sanitize_* attributes
leads to over- or under-sanitizing, which is always bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187967 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evgeniy Stepanov
2013-08-08 08:22:39 +00:00
parent 76ef79f410
commit 35d2102133
2 changed files with 135 additions and 5 deletions
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112
test/Transforms/Inline/attributes.ll Normal file
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@@ -0,0 +1,112 @@
; RUN: opt < %s -inline -S | FileCheck %s
target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
define i32 @noattr_callee(i32 %i) {
ret i32 %i
}
define i32 @sanitize_address_callee(i32 %i) sanitize_address {
ret i32 %i
}
define i32 @sanitize_thread_callee(i32 %i) sanitize_thread {
ret i32 %i
}
define i32 @sanitize_memory_callee(i32 %i) sanitize_memory {
ret i32 %i
}
define i32 @alwaysinline_callee(i32 %i) alwaysinline {
ret i32 %i
}
define i32 @alwaysinline_sanitize_address_callee(i32 %i) alwaysinline sanitize_address {
ret i32 %i
}
define i32 @alwaysinline_sanitize_thread_callee(i32 %i) alwaysinline sanitize_thread {
ret i32 %i
}
define i32 @alwaysinline_sanitize_memory_callee(i32 %i) alwaysinline sanitize_memory {
ret i32 %i
}
; Check that:
; * noattr callee is inlined into noattr caller,
; * sanitize_(address|memory|thread) callee is not inlined into noattr caller,
; * alwaysinline callee is always inlined no matter what sanitize_* attributes are present.
define i32 @test_no_sanitize_address(i32 %arg) {
%x1 = call i32 @noattr_callee(i32 %arg)
%x2 = call i32 @sanitize_address_callee(i32 %x1)
%x3 = call i32 @alwaysinline_callee(i32 %x2)
%x4 = call i32 @alwaysinline_sanitize_address_callee(i32 %x3)
ret i32 %x4
; CHECK-LABEL: @test_no_sanitize_address(
; CHECK-NEXT: @sanitize_address_callee
; CHECK-NEXT: ret i32
}
define i32 @test_no_sanitize_memory(i32 %arg) {
%x1 = call i32 @noattr_callee(i32 %arg)
%x2 = call i32 @sanitize_memory_callee(i32 %x1)
%x3 = call i32 @alwaysinline_callee(i32 %x2)
%x4 = call i32 @alwaysinline_sanitize_memory_callee(i32 %x3)
ret i32 %x4
; CHECK-LABEL: @test_no_sanitize_memory(
; CHECK-NEXT: @sanitize_memory_callee
; CHECK-NEXT: ret i32
}
define i32 @test_no_sanitize_thread(i32 %arg) {
%x1 = call i32 @noattr_callee(i32 %arg)
%x2 = call i32 @sanitize_thread_callee(i32 %x1)
%x3 = call i32 @alwaysinline_callee(i32 %x2)
%x4 = call i32 @alwaysinline_sanitize_thread_callee(i32 %x3)
ret i32 %x4
; CHECK-LABEL: @test_no_sanitize_thread(
; CHECK-NEXT: @sanitize_thread_callee
; CHECK-NEXT: ret i32
}
; Check that:
; * noattr callee is not inlined into sanitize_(address|memory|thread) caller,
; * sanitize_(address|memory|thread) callee is inlined into the caller with the same attribute,
; * alwaysinline callee is always inlined no matter what sanitize_* attributes are present.
define i32 @test_sanitize_address(i32 %arg) sanitize_address {
%x1 = call i32 @noattr_callee(i32 %arg)
%x2 = call i32 @sanitize_address_callee(i32 %x1)
%x3 = call i32 @alwaysinline_callee(i32 %x2)
%x4 = call i32 @alwaysinline_sanitize_address_callee(i32 %x3)
ret i32 %x4
; CHECK-LABEL: @test_sanitize_address(
; CHECK-NEXT: @noattr_callee
; CHECK-NEXT: ret i32
}
define i32 @test_sanitize_memory(i32 %arg) sanitize_memory {
%x1 = call i32 @noattr_callee(i32 %arg)
%x2 = call i32 @sanitize_memory_callee(i32 %x1)
%x3 = call i32 @alwaysinline_callee(i32 %x2)
%x4 = call i32 @alwaysinline_sanitize_memory_callee(i32 %x3)
ret i32 %x4
; CHECK-LABEL: @test_sanitize_memory(
; CHECK-NEXT: @noattr_callee
; CHECK-NEXT: ret i32
}
define i32 @test_sanitize_thread(i32 %arg) sanitize_thread {
%x1 = call i32 @noattr_callee(i32 %arg)
%x2 = call i32 @sanitize_thread_callee(i32 %x1)
%x3 = call i32 @alwaysinline_callee(i32 %x2)
%x4 = call i32 @alwaysinline_sanitize_thread_callee(i32 %x3)
ret i32 %x4
; CHECK-LABEL: @test_sanitize_thread(
; CHECK-NEXT: @noattr_callee
; CHECK-NEXT: ret i32
}