From b8aeec46b7fb0a88c74208a577dc0b441ed03cfe Mon Sep 17 00:00:00 2001
From: Ekaterina Romanova <katya_romanova@playstation.sony.com>
Date: Fri, 2 Mar 2018 03:51:27 +0000
Subject: [ThinLTO] Added a couple of C LTO API interfaces to control the cache
 policy. - thinlto_codegen_set_cache_size_bytes to control the absolute size
 of cache directory. - thinlto_codegen_set_cache_size_files the size and
 amount of files in cache directory. These functions have been supported in
 C++ LTO API for a long time, but were absent in C LTO API.

Differential Revision: https://reviews.llvm.org/D42446

llvm-svn: 326537
---
 llvm/include/llvm-c/lto.h                          | 24 +++++++++++++++++++++-
 .../include/llvm/LTO/legacy/ThinLTOCodeGenerator.h | 15 ++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)

(limited to 'llvm/include')

diff --git a/llvm/include/llvm-c/lto.h b/llvm/include/llvm-c/lto.h
index 4eee5f1f113..65d172dea18 100644
--- a/llvm/include/llvm-c/lto.h
+++ b/llvm/include/llvm-c/lto.h
@@ -44,7 +44,7 @@ typedef bool lto_bool_t;
  * @{
  */
 
-#define LTO_API_VERSION 21
+#define LTO_API_VERSION 22
 
 /**
  * \since prior to LTO_API_VERSION=3
@@ -816,6 +816,28 @@ extern void thinlto_codegen_set_final_cache_size_relative_to_available_space(
 extern void thinlto_codegen_set_cache_entry_expiration(thinlto_code_gen_t cg,
                                                        unsigned expiration);
 
+/**
+ * Sets the maximum size of the cache directory (in bytes). A value over the
+ * amount of available space on the disk will be reduced to the amount of
+ * available space. An unspecified default value will be applied. A value of 0
+ * will be ignored.
+ *
+ * \since LTO_API_VERSION=22
+ */
+extern void thinlto_codegen_set_cache_size_bytes(thinlto_code_gen_t cg,
+                                                 unsigned max_size_bytes);
+
+/**
+ * Sets the maximum number of files in the cache directory. An unspecified
+ * default value will be applied. A value of 0 will be ignored.
+ *
+ * \since LTO_API_VERSION=22
+ */
+extern void thinlto_codegen_set_cache_size_files(thinlto_code_gen_t cg,
+                                                 unsigned max_size_files);
+
+
+
 /**
  * @} // endgroup LLVMCTLTO_CACHING
  */
diff --git a/llvm/include/llvm/LTO/legacy/ThinLTOCodeGenerator.h b/llvm/include/llvm/LTO/legacy/ThinLTOCodeGenerator.h
index e47456445f0..b32a972542c 100644
--- a/llvm/include/llvm/LTO/legacy/ThinLTOCodeGenerator.h
+++ b/llvm/include/llvm/LTO/legacy/ThinLTOCodeGenerator.h
@@ -184,6 +184,21 @@ public:
       CacheOptions.Policy.MaxSizePercentageOfAvailableSpace = Percentage;
   }
 
+  /// Cache policy: the maximum size for the cache directory in bytes. A value
+  /// over the amount of available space on the disk will be reduced to the
+  /// amount of available space. A value of 0 will be ignored.
+  void setCacheMaxSizeBytes(unsigned MaxSizeBytes) {
+    if (MaxSizeBytes)
+      CacheOptions.Policy.MaxSizeBytes = MaxSizeBytes;
+  }
+
+  /// Cache policy: the maximum number of files in the cache directory. A value
+  /// of 0 will be ignored.
+  void setCacheMaxSizeFiles(unsigned MaxSizeFiles) {
+    if (MaxSizeFiles)
+      CacheOptions.Policy.MaxSizeFiles = MaxSizeFiles;
+  }
+
   /**@}*/
 
   /// Set the path to a directory where to save temporaries at various stages of
-- 
cgit v1.2.3