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9d54726038
This patch add support for GCC attribute((ifunc("resolver"))) for
targets that use ELF as object file format. In general ifunc is a
special kind of function alias with type @gnu_indirect_function. Patch
for Clang http://reviews.llvm.org/D15524
Differential Revision: http://reviews.llvm.org/D15525
llvm-svn: 265667
43 lines
741 B
LLVM
43 lines
741 B
LLVM
; RUN: verify-uselistorder < %s
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; Global referencing ifunc.
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@ptr_foo = global void ()* @foo_ifunc
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; Alias for ifunc.
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@alias_foo = alias void (), void ()* @foo_ifunc
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@foo_ifunc = ifunc void (), i8* ()* @foo_resolver
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define i8* @foo_resolver() {
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entry:
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ret i8* null
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}
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; Function referencing ifunc.
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define void @bar() {
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entry:
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call void @foo_ifunc()
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ret void
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}
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; Global referencing function.
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@ptr_bar = global void ()* @bar
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; Alias for function.
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@alias_bar = alias void (), void ()* @bar
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@bar_ifunc = ifunc void (), i8* ()* @bar2_ifunc
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@bar2_ifunc = ifunc i8* (), i8* ()* @bar_resolver
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define i8* @bar_resolver() {
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entry:
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ret i8* null
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}
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; Function referencing bar.
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define void @bar2() {
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entry:
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call void @bar()
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ret void
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}
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