llvm-project/llvm/test/Linker/link-global-to-func.ll

; RUN: llvm-as %s -o %t1.bc
; RUN: echo {declare void @__eprintf(i8*, i8*, i32, i8*) noreturn     define void @foo() {      tail call void @__eprintf( i8* undef, i8* undef, i32 4, i8* null ) noreturn nounwind       unreachable }} | llvm-as -o %t2.bc
; RUN: llvm-link %t2.bc %t1.bc -S | grep __eprintf
; RUN: llvm-link %t1.bc %t2.bc -S | grep __eprintf

; rdar://6072702

@__eprintf = external global i8*		; <i8**> [#uses=1]

define i8* @test() {
	%A = load i8** @__eprintf		; <i8*> [#uses=1]
	ret i8* %A
}
Remove obsolete -f flags. llvm-svn: 79992 2009-08-25 23:38:29 +08:00			`; RUN: llvm-as %s -o %t1.bc`
			`; RUN: echo {declare void @__eprintf(i8, i8, i32, i8) noreturn define void @foo() { tail call void @__eprintf( i8 undef, i8* undef, i32 4, i8* null ) noreturn nounwind unreachable }} \| llvm-as -o %t2.bc`
Use llvm-link -S instead of using llvm-dis. llvm-svn: 81860 2009-09-15 23:38:31 +08:00			`; RUN: llvm-link %t2.bc %t1.bc -S \| grep __eprintf`
			`; RUN: llvm-link %t1.bc %t2.bc -S \| grep __eprintf`
implement linking of globals to functions, in one direction (replacing a function with a global). This is needed when building llvm itself with LTO on darwin, because of the EXPLICIT_SYMBOL hack in lib/system/DynamicLibrary.cpp. Implementation of linking the other way will need to wait for a cleanup of LinkFunctionProtos. llvm-svn: 53546 2008-07-14 14:49:45 +08:00
			`; rdar://6072702`

			`@__eprintf = external global i8* ; <i8**> [#uses=1]`

			`define i8* @test() {`
			`%A = load i8** @__eprintf ; <i8*> [#uses=1]`
			`ret i8* %A`
			`}`