Disable inlining between sanitized and non-sanitized functions.

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

1 files changed, 112 insertions, 0 deletions

diff --git a/test/Transforms/Inline/attributes.ll b/test/Transforms/Inline/attributes.ll
new file mode 100644
index 0000000000..53fb13f2ba
--- /dev/null
+++ b/test/Transforms/Inline/attributes.ll
@@ -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
+}