a1ca3af31e
Here's a high level summary of the changes in this patch. For more information on rational, see the RFC. (https://discourse.llvm.org/t/rfc-a-unified-lto-bitcode-frontend/61774). - Add config parameter to LTO backend, specifying which LTO mode is desired when using unified LTO. - Add unified LTO flag to the summary index for efficiency. Unified LTO modules can be detected without parsing the module. - Make sure that the ModuleID is generated by incorporating more types of symbols. Differential Revision: https://reviews.llvm.org/D123803
25 lines
689 B
LLVM
25 lines
689 B
LLVM
; Generate bitcode files with split LTO modules
|
|
; RUN: opt -unified-lto -thinlto-bc -thinlto-split-lto-unit -o %t0.bc %s
|
|
; RUN: llvm-dis -o %t3.ll %t0.bc
|
|
; RUN: FileCheck <%t3.ll.0 --check-prefix=M0 %s
|
|
; RUN: FileCheck <%t3.ll.1 --check-prefix=M1 %s
|
|
; RUN: llvm-bcanalyzer -dump %t0.bc | FileCheck --check-prefix=BCA0 %s
|
|
|
|
; ERROR: llvm-modextract: error: module index out of range; bitcode file contains 1 module(s)
|
|
|
|
; BCA0: <GLOBALVAL_SUMMARY_BLOCK
|
|
; BCA0: <FULL_LTO_GLOBALVAL_SUMMARY_BLOCK
|
|
; 16 = not eligible to import
|
|
|
|
$g = comdat any
|
|
|
|
@g = global i8 42, comdat, !type !0
|
|
|
|
; M0: define ptr @f()
|
|
define ptr @f() {
|
|
ret ptr @g
|
|
}
|
|
|
|
; M1: !0 = !{i32 0, !"typeid"}
|
|
!0 = !{i32 0, !"typeid"}
|