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gold-plugin: "Upgrade" debug info and handle its warnings.

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The gold plugin never calls MaterializeModule, so any old debug info
was not deleted and could cause crashes.

Now that it is being "upgraded", the plugin also has to handle warnings
and create Modules with a nice id (it shows in the warning).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230655 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-02-26 18:24:37 +00:00
parent adaebc8b56
commit 8d4343eb9b
3 changed files with 37 additions and 11 deletions
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8
test/tools/gold/drop-debug.ll Normal file
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@@ -0,0 +1,8 @@
; RUN: %gold -plugin %llvmshlibdir/LLVMgold.so \
; RUN: --plugin-opt=emit-llvm -shared %p/Inputs/drop-debug.bc \
; RUN: -o t2.bc 2>&1 | FileCheck %s
; drop-debug.bc was created from "void f(void) {}" with clang 3.5 and
; -gline-tables-only, so it contains old debug info.
; CHECK: warning: LLVM gold plugin: ignoring debug info with an invalid version (1) in {{.*}}/Inputs/drop-debug.bc