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driver: keep options ordered

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The linker flags are order dependent.  Ensure that we preserve ordering.  Also
enhance it to support options which may be repeated (e.g. -rpath).
This commit is contained in:
Saleem Abdulrasool
2016-03-30 21:23:53 -07:00
parent b8aa73788f
commit 9571219927
2 changed files with 31 additions and 9 deletions
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24
test/AutolinkExtract/linker-order.ll Normal file
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; RUN: llc -mtriple armv7--linux-gnueabihf -filetype obj -o - %s | %target-swift-autolink-extract -o - - | FileCheck %s
; REQUIRES: autolink-extract
; Ensure that the options in the object file preserve ordering. The linker
; options are order dependent, and we would accidentally reorder them because we
; used a std::set rather than a llvm::SmallSetVector.
@_swift1_autolink_entries_1 = private constant [7 x i8] c"Saleem\00", section ".swift1_autolink_entries", align 8
@_swift1_autolink_entries_0 = private constant [8 x i8] c"Naureen\00", section ".swift1_autolink_entries", align 8
@_swift1_autolink_entries_2 = private constant [7 x i8] c"-rpath\00", section ".swift1_autolink_entries", align 8
@_swift1_autolink_entries_3 = private constant [8 x i8] c"Naureen\00", section ".swift1_autolink_entries", align 8
@_swift1_autolink_entries_4 = private constant [7 x i8] c"-rpath\00", section ".swift1_autolink_entries", align 8
@_swift1_autolink_entries_5 = private constant [7 x i8] c"Saleem\00", section ".swift1_autolink_entries", align 8
; CHECK: Saleem
; CHECK: Naureen
; CHECK: -rpath
; CHECK: Naureen
; CHECK: -rpath
; CHECK: Saleem