From: Dan Willemsen <dwillemsen@google.com>
Date: Thu, 22 Feb 2018 02:47:18 +0000 (-0800)
Subject: Add SourceFileGenerator.GeneratedDeps()
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=09ce9592f17f74539f57f1feeaa21ac8d3b5d9b5;p=android-x86%2Fexternal-llvm-project.git

Add SourceFileGenerator.GeneratedDeps()

To clean up unnecessary dependencies when using generated headers,
GeneratedDeps() should return a single file from every build entry.
GeneratedSourceFiles() used to be used from this, but now if you create
one build rule with multiple outputs, it's valid to only return a single
output file.

In this case, ModuleBuild is called once per source file, each
outputing a single output file, so all of them still need to be listed.

Bug: 73745773
Test: diff out/soong/build.ninja
Test: diff out/soong/Android-aosp_arm.mk
Test: rm -rf out; m
Change-Id: I073e3be7ecd9545f4002ad94d3da44f1a6652baa
---

diff --git a/llvm/soong/tblgen.go b/llvm/soong/tblgen.go
index 0b9a2c702a9..02ea0d052dd 100644
--- a/llvm/soong/tblgen.go
+++ b/llvm/soong/tblgen.go
@@ -162,6 +162,10 @@ func (t *tblgen) GeneratedHeaderDirs() android.Paths {
 }
 
 func (t *tblgen) GeneratedSourceFiles() android.Paths {
+	return nil
+}
+
+func (t *tblgen) GeneratedDeps() android.Paths {
 	return t.generatedHeaders
 }