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llvm-mirror/test/ExecutionEngine/OrcMCJIT/eh-lg-pic.ll
Reid Kleckner 0a9a1968f9 Re-land r335297 "[X86] Implement more of x86-64 large and medium PIC code models"
Don't try to generate large PIC code for non-ELF targets. Neither COFF
nor MachO have relocations for large position independent code, and
users have been using "large PIC" code models to JIT 64-bit code for a
while now. With this change, if they are generating ELF code, their
JITed code will truly be PIC, but if they target MachO or COFF, it will
contain 64-bit immediates that directly reference external symbols. For
a JIT, that's perfectly fine.

llvm-svn: 337740
2018-07-23 21:14:35 +00:00

40 lines
1.1 KiB
LLVM

; REQUIRES: cxx-shared-library
; RUN: %lli -jit-kind=orc-mcjit -relocation-model=pic -code-model=large %s
; XFAIL: cygwin, win32, mingw, mips-, mipsel-, i686, i386, aarch64, arm
declare i8* @__cxa_allocate_exception(i64)
declare void @__cxa_throw(i8*, i8*, i8*)
declare i32 @__gxx_personality_v0(...)
declare void @__cxa_end_catch()
declare i8* @__cxa_begin_catch(i8*)
@_ZTIi = external constant i8*
define void @throwException() {
%exception = tail call i8* @__cxa_allocate_exception(i64 4)
call void @__cxa_throw(i8* %exception, i8* bitcast (i8** @_ZTIi to i8*), i8* null)
unreachable
}
; Make an internal function so we exercise R_X86_64_GOTOFF64 relocations.
define internal dso_local void @use_gotoff() {
ret void
}
define i32 @main() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) {
entry:
call void @use_gotoff()
invoke void @throwException()
to label %try.cont unwind label %lpad
lpad:
%p = landingpad { i8*, i32 }
catch i8* bitcast (i8** @_ZTIi to i8*)
%e = extractvalue { i8*, i32 } %p, 0
call i8* @__cxa_begin_catch(i8* %e)
call void @__cxa_end_catch()
br label %try.cont
try.cont:
ret i32 0
}