Looks like it was caused by the RR code motion merge (https://github.com/apple/swift/pull/2064).
Xin, I'm planning to revert 49f1c66d7b20b29097d7aec99835c5a42a2048bf and 3824a9479ed2df701dffff4a0c9467495a4c37f0 once my tests finish, unless you have a fix in the next few minutes. > On Apr 19, 2016, at 8:50 PM, Erik Eckstein <eeckst...@apple.com> wrote: > > This looks like there is some kind of non-determinism in the compilation. > >> On Apr 19, 2016, at 8:14 PM, Greg Parker <gpar...@apple.com> wrote: >> >> >>> On Apr 19, 2016, at 12:45 PM, no-re...@swift.org wrote: >>> >>> [FAILURE] oss-swift-incremental-RA-osx [#3504] >>> >>> Tests: >>> >>> Name: Swift >>> Failed: 1 test(s), Passed: 7808 test(s), Total: 7809 test(s) >>> • Failed: Swift.IRGen.module_hash.swift >>> >> >> This may be an older failure recently uncovered by changes to which tests >> get run. Jordan, Erik, any guesses of changes that might have broken it? >> >> Errors and recorded output below: >> >> /Volumes/precious/cvs/swift-github/swift/test/IRGen/module_hash.swift:49:15: >> error: expected string not found in input >> // CHECK-DAG: test.o: MD5=[[TEST4_MD5]] >> ^ >> <stdin>:21:1: note: scanning from here >> thread 0: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o >> ^ >> <stdin>:21:1: note: with variable "TEST4_MD5" equal to >> "c32902f17598124702a017fac0e9b86d" >> thread 0: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o >> ^ >> <stdin>:26:161: note: possible intended match here >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=e888cbc861bdeaaf786df90c4e5a40da >> >> >> ^ >> /Volumes/precious/cvs/swift-github/swift/test/IRGen/module_hash.swift:59:15: >> error: expected string not found in input >> // CHECK-DAG: test.o: prev MD5=[[TEST4_MD5]] skipping >> ^ >> <stdin>:30:1: note: scanning from here >> thread 0: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o >> ^ >> <stdin>:30:1: note: with variable "TEST4_MD5" equal to >> "c32902f17598124702a017fac0e9b86d" >> thread 0: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o >> ^ >> <stdin>:35:161: note: possible intended match here >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> prev MD5=e888cbc861bdeaaf786df90c4e5a40da recompiling >> >> >> ^ >> >> ---- >> >> single-threaded initial >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=bbfcd715eee1f17799113c1826dfe124 >> single-threaded same compilation >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=bbfcd715eee1f17799113c1826dfe124 >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> prev MD5=bbfcd715eee1f17799113c1826dfe124 skipping >> single-threaded file changed >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=bd6e3d5aef7c83992235017dacea08a9 >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> prev MD5=bbfcd715eee1f17799113c1826dfe124 recompiling >> single-threaded option changed >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=d67d06dfe12e11f7a2e4403461c646cd >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> prev MD5=bd6e3d5aef7c83992235017dacea08a9 recompiling >> multi-threaded initial >> thread 0: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o >> thread 1: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o: >> MD5=a3b21cc67542538560df721fd14c5797 >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=c32902f17598124702a017fac0e9b86d >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> prev MD5=d67d06dfe12e11f7a2e4403461c646cd recompiling >> thread 1: done >> thread 0: done >> multi-threaded same compilation >> thread 0: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o >> thread 1: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o: >> MD5=a3b21cc67542538560df721fd14c5797 >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o: >> prev MD5=a3b21cc67542538560df721fd14c5797 skipping >> thread 1: done >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=e888cbc861bdeaaf786df90c4e5a40da >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> prev MD5=c32902f17598124702a017fac0e9b86d recompiling >> thread 0: done >> multi-threaded one file changed >> thread 0: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o >> thread 1: fetched >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o: >> MD5=1819daca599a35aa54bcdbad1251d8ac >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/simple.o: >> prev MD5=a3b21cc67542538560df721fd14c5797 recompiling >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> MD5=c32902f17598124702a017fac0e9b86d >> /Volumes/precious/cvs/swift-github/build/Ninja-RelWithDebInfoAssert+stdlib-DebugAssert/swift-macosx-x86_64/test-macosx-x86_64/IRGen/Output/module_hash.swift.tmp/test.o: >> prev MD5=e888cbc861bdeaaf786df90c4e5a40da recompiling >> thread 1: done >> thread 0: done >> >> >> -- >> Greg Parker gpar...@apple.com Runtime Wrangler >> >> > 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