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llvm-project/llvm/test/LTO/linkonce_odr_func.ll

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Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". There are two ways one could implement hiding of linkonce_odr symbols in LTO: * LLVM tells the linker which symbols can be hidden if not used from native files. * The linker tells LLVM which symbols are not used from other object files, but will be put in the dso symbol table if present. GOLD's API is the second option. It was implemented almost 1:1 in llvm by passing the list down to internalize. LLVM already had partial support for the first option. It is also very similar to how ld64 handles hiding these symbols when *not* doing LTO. This patch then * removes the APIs for the DSO list. * marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr global values and other linkonce_odr whose address is not used. * makes the gold plugin responsible for handling the API mismatch. llvm-svn: 193800
2013-11-01 04:51:58 +08:00
; RUN: llvm-as < %s >%t1
; RUN: llvm-lto -o %t2 -dso-symbol=foo1 -dso-symbol=foo2 -dso-symbol=foo3 \
Don't internalize linkonce_odr non constant variables. llvm-svn: 200983
2014-02-08 03:04:43 +08:00
; RUN: -dso-symbol=foo4 -dso-symbol=v1 -dso-symbol=v2 %t1 -disable-opt
Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". There are two ways one could implement hiding of linkonce_odr symbols in LTO: * LLVM tells the linker which symbols can be hidden if not used from native files. * The linker tells LLVM which symbols are not used from other object files, but will be put in the dso symbol table if present. GOLD's API is the second option. It was implemented almost 1:1 in llvm by passing the list down to internalize. LLVM already had partial support for the first option. It is also very similar to how ld64 handles hiding these symbols when *not* doing LTO. This patch then * removes the APIs for the DSO list. * marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr global values and other linkonce_odr whose address is not used. * makes the gold plugin responsible for handling the API mismatch. llvm-svn: 193800
2013-11-01 04:51:58 +08:00
; RUN: llvm-nm %t2 | FileCheck %s
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
A better fix that also works on ppc: add a target tripple. llvm-svn: 193915
2013-11-02 14:00:09 +08:00
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
XFAIL on ppc64 too. llvm-svn: 193804
2013-11-01 05:27:02 +08:00
Use \01 to disable the mangler. Should fix the 32 bit windows bots. llvm-svn: 193846
2013-11-01 09:14:20 +08:00
; CHECK: t foo1
A better fix that also works on ppc: add a target tripple. llvm-svn: 193915
2013-11-02 14:00:09 +08:00
define linkonce_odr void @foo1() noinline {
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
ret void
}
A better fix that also works on ppc: add a target tripple. llvm-svn: 193915
2013-11-02 14:00:09 +08:00
; CHECK: W foo2
define linkonce_odr void @foo2() noinline {
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
ret void
}
Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". There are two ways one could implement hiding of linkonce_odr symbols in LTO: * LLVM tells the linker which symbols can be hidden if not used from native files. * The linker tells LLVM which symbols are not used from other object files, but will be put in the dso symbol table if present. GOLD's API is the second option. It was implemented almost 1:1 in llvm by passing the list down to internalize. LLVM already had partial support for the first option. It is also very similar to how ld64 handles hiding these symbols when *not* doing LTO. This patch then * removes the APIs for the DSO list. * marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr global values and other linkonce_odr whose address is not used. * makes the gold plugin responsible for handling the API mismatch. llvm-svn: 193800
2013-11-01 04:51:58 +08:00
; CHECK: t foo3
A better fix that also works on ppc: add a target tripple. llvm-svn: 193915
2013-11-02 14:00:09 +08:00
define linkonce_odr void @foo3() noinline {
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
ret void
}
A better fix that also works on ppc: add a target tripple. llvm-svn: 193915
2013-11-02 14:00:09 +08:00
; CHECK: W foo4
define linkonce_odr void @foo4() noinline {
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
ret void
}
Don't internalize linkonce_odr non constant variables. llvm-svn: 200983
2014-02-08 03:04:43 +08:00
; CHECK: r v1
@v1 = linkonce_odr constant i32 32
; CHECK: V v2
@v2 = linkonce_odr global i32 32
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
declare void @f(void()*)
Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". There are two ways one could implement hiding of linkonce_odr symbols in LTO: * LLVM tells the linker which symbols can be hidden if not used from native files. * The linker tells LLVM which symbols are not used from other object files, but will be put in the dso symbol table if present. GOLD's API is the second option. It was implemented almost 1:1 in llvm by passing the list down to internalize. LLVM already had partial support for the first option. It is also very similar to how ld64 handles hiding these symbols when *not* doing LTO. This patch then * removes the APIs for the DSO list. * marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr global values and other linkonce_odr whose address is not used. * makes the gold plugin responsible for handling the API mismatch. llvm-svn: 193800
2013-11-01 04:51:58 +08:00
declare void @p()
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
define void @bar() {
bb0:
A better fix that also works on ppc: add a target tripple. llvm-svn: 193915
2013-11-02 14:00:09 +08:00
call void @foo1()
call void @f(void()* @foo2)
invoke void @foo3() to label %bb1 unwind label %clean
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
bb1:
A better fix that also works on ppc: add a target tripple. llvm-svn: 193915
2013-11-02 14:00:09 +08:00
invoke void @f(void()* @foo4) to label %bb2 unwind label %clean
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
bb2:
ret void
clean:
Use LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN instead of the "dso list". There are two ways one could implement hiding of linkonce_odr symbols in LTO: * LLVM tells the linker which symbols can be hidden if not used from native files. * The linker tells LLVM which symbols are not used from other object files, but will be put in the dso symbol table if present. GOLD's API is the second option. It was implemented almost 1:1 in llvm by passing the list down to internalize. LLVM already had partial support for the first option. It is also very similar to how ld64 handles hiding these symbols when *not* doing LTO. This patch then * removes the APIs for the DSO list. * marks LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN all linkonce_odr unnamed_addr global values and other linkonce_odr whose address is not used. * makes the gold plugin responsible for handling the API mismatch. llvm-svn: 193800
2013-11-01 04:51:58 +08:00
landingpad {i32, i32} personality void()* @p cleanup
Handle calls and invokes in GlobalStatus. This patch teaches GlobalStatus to analyze a call that uses the global value as a callee, not as an argument. With this change internalize call handle the common use of linkonce_odr functions. This reduces the number of linkonce_odr functions in a LTO build of clang (checked with the emit-llvm gold plugin option) from 1730 to 60. llvm-svn: 193436
2013-10-26 05:29:52 +08:00
ret void
}