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c8b1f095a3
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
44 lines
1.1 KiB
LLVM
44 lines
1.1 KiB
LLVM
; RUN: llc -mtriple=i686-apple-macosx -o - %s | FileCheck %s
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; x86 doesn't normally use indirect symbols, particularly hidden ones, but it
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; can be tricked into it for exception-handling typeids.
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@hidden_typeid = external hidden constant i8*
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@normal_typeid = external constant i8*
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declare void @throws()
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define void @get_indirect_hidden() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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invoke void @throws() to label %end unwind label %lpad
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lpad:
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%tmp = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @hidden_typeid to i8*)
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br label %end
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end:
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ret void
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}
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define void @get_indirect() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
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invoke void @throws() to label %end unwind label %lpad
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lpad:
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%tmp = landingpad { i8*, i32 }
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catch i8* bitcast (i8** @normal_typeid to i8*)
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br label %end
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end:
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ret void
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}
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declare i32 @__gxx_personality_v0(...)
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; CHECK: .section __IMPORT,__pointers,non_lazy_symbol_pointers
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; CHECK-NOT: __DATA,__data
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; CHECK: .indirect_symbol _normal_typeid
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; CHECK-NEXT: .long 0
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; CHECK-NOT: __DATA,__data
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; CHECK: .indirect_symbol _hidden_typeid
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; CHECK-NEXT: .long 0
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