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llvm-project/llvm/test/CodeGen/X86/indirect-hidden.ll

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X86: emit hidden stubs into a proper non_lazy_symbol_pointer section. rdar://problem/16660411 llvm-svn: 207518
2014-04-29 18:06:10 +08:00
; RUN: llc -mtriple=i686-apple-macosx -o - %s | FileCheck %s
; x86 doesn't normally use indirect symbols, particularly hidden ones, but it
; can be tricked into it for exception-handling typeids.
@hidden_typeid = external hidden constant i8*
@normal_typeid = external constant i8*
declare void @throws()
Move the personality function from LandingPadInst to Function The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 llvm-svn: 239940
2015-06-18 04:52:32 +08:00
define void @get_indirect_hidden() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
X86: emit hidden stubs into a proper non_lazy_symbol_pointer section. rdar://problem/16660411 llvm-svn: 207518
2014-04-29 18:06:10 +08:00
invoke void @throws() to label %end unwind label %lpad
lpad:
Move the personality function from LandingPadInst to Function The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 llvm-svn: 239940
2015-06-18 04:52:32 +08:00
%tmp = landingpad { i8*, i32 }
X86: emit hidden stubs into a proper non_lazy_symbol_pointer section. rdar://problem/16660411 llvm-svn: 207518
2014-04-29 18:06:10 +08:00
catch i8* bitcast (i8** @hidden_typeid to i8*)
br label %end
end:
ret void
}
Move the personality function from LandingPadInst to Function The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 llvm-svn: 239940
2015-06-18 04:52:32 +08:00
define void @get_indirect() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
X86: emit hidden stubs into a proper non_lazy_symbol_pointer section. rdar://problem/16660411 llvm-svn: 207518
2014-04-29 18:06:10 +08:00
invoke void @throws() to label %end unwind label %lpad
lpad:
Move the personality function from LandingPadInst to Function The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 llvm-svn: 239940
2015-06-18 04:52:32 +08:00
%tmp = landingpad { i8*, i32 }
X86: emit hidden stubs into a proper non_lazy_symbol_pointer section. rdar://problem/16660411 llvm-svn: 207518
2014-04-29 18:06:10 +08:00
catch i8* bitcast (i8** @normal_typeid to i8*)
br label %end
end:
ret void
}
declare i32 @__gxx_personality_v0(...)
; CHECK: .section __IMPORT,__pointers,non_lazy_symbol_pointers
; CHECK-NOT: __DATA,__data
; CHECK: .indirect_symbol _normal_typeid
; CHECK-NEXT: .long 0
; CHECK-NOT: __DATA,__data
; CHECK: .indirect_symbol _hidden_typeid
; CHECK-NEXT: .long 0