LLVM and clang on powerpc-darwin8

• github llvm/powerpc-darwin8 branch
• github clang/powerpc-darwin8 branch
• github compiler-rt/powerpc-darwin8 branch
• github libcxxabi/powerpc-darwin8 branch
• github libcxx/powerpc-darwin8 branch

Release 3.0 status

Fink packaging

The build uses dynamic shared libraries, which greatly reduces the size of compiled binaries. llvm30.info's PatchScript contains several little fixes to the cmake files to correctly link libraries.

The latest revision includes a patch (r147657) that fixes numerous PCH failures for powerpc (linux and darwin both affected). The debug trail for this issue can be found at this paste.

cmake options

• -DLLVM_TARGETS_TO_BUILD=X86;PowerPC;ARM
• -DBUILD_SHARED_LIBS:BOOL=ON
• -DCMAKE_C_FLAGS=-fno-common
• -DCMAKE_CXX_FLAGS=-fno-common
• -DCMAKE_INSTALL_PREFIX=%p/opt/llvm-%v
• -DLLVM_ENABLE_ASSERTIONS=OFF
• -DCMAKE_BUILD_TYPE=Release

Test logs

I've logged the results of make -k check-all for release-3.0 on powerpc-darwin8:

Test logs for 3.0, built on powerpc-darwin8 g++-4.0.1

unpatched	.bz2
patched r147657	.bz2	Release: -O3 -DNDEBUG
patched r147657, -O0	.bz2	Using -O0 and with ENABLE_ASSERTIONS:ON (same test failures)

Alexander Hansen helped test the fink package on powerpc-darwin9.

Test logs for 3.0, built on powerpc-darwin9 g++-4.2.1

patched r147657

.bz2

These results look quite similar!

Release 3.1 status

Fink packaging

This build is similar to release-3.0's build. The patch contains workaround for g++-4.0.1 and several cmake build fixes. It has been tested on i386-darwin10, x86_64-darwin11, which build a 3-stage bootstrap successfully, with pretty clean test results.

cmake options

Test logs

Release 3.2 status

Fink packaging

For this revision, only the native target is enabled. For non-PowerPC systems, the build undergoes a 3-stage bootstrap, validated on i686-darwin10, x86_64-darwin11. When tests are run, the logs are also saved to the share/docs/llvm32/testlogs directory (installed). The patch contains several backported patches from svn-trunk: driver fixes for PowerPC-Darwin.

cmake options

Test logs

Test results (not looking bad) are similar to builds #31 and #32 on svn-trunk.

Usage notes

Release 3.3 status

• llvm powerpc-darwin8-rel-3.3 branch
• clang powerpc-darwin8-rel-3.3 branch
• compiler-rt powerpc-darwin8-rel-3.3 branch

Fink packaging

Differences from 3.2 packaging:

• atomic functions enabled (threads enabled)
• built with -O2
• includes preliminary PPC mach-o object writer

Test logs

Release 3.4 status

• llvm powerpc-darwin8-rel-3.4 branch
• clang powerpc-darwin8-rel-3.4 branch
• compiler-rt powerpc-darwin8-rel-3.4 branch

Differences from 3.3 packaging:

• Patches separated per-project
• library dependency on ncurses
• Enable compiler-rt's libclang_rt tests, including log
• build and bootstrap with libc++ (darwin10+), including test log
• splitoffs for llvm, clang, polly, and now libc++
• darwin10+: automatically 4th stage bootstrap if 3rd stage hasn't converged

SVN trunk status (to 3.5)

git fork/branches

• fangism/llvm:powerpc-darwin8, patch diff:master...powerpc-darwin8
• fangism/clang:powerpc-darwin8, patch diff:master...powerpc-darwin8
• fangism/compiler-rt:powerpc-darwin8, patch diff:master...powerpc-darwin8

Patches

cmake options

• -DLLVM_TARGETS_TO_BUILD=X86;PowerPC;ARM
• -DBUILD_SHARED_LIBS:BOOL=ON
• -DCMAKE_C_FLAGS=-fno-common
• -DCMAKE_CXX_FLAGS=-fno-common
• -DCMAKE_INSTALL_PREFIX=/usr/local/experimental
• -DLLVM_ENABLE_ASSERTIONS=OFF
• -DCMAKE_BUILD_TYPE=Release
• -DLLVM_ENABLE_ASSERTIONS=ON
• -DCMAKE_BUILD_TYPE=Debug
• -DLLVM_ENABLE_THREADS=OFF

Test logs

Test logs for github:fangism/{llvm,clang}/powerpc-darwin8, built on powerpc-darwin8 g++-4.0.1 (oldest to newest)

build	svn(master)	date	git diff master... powerpc-darwin8	test log	bz2	remarks
#37c	r175024	2013-03-04	llvm clang	llvm-r175024c clang-r175024c	.bz2 .bz2	LLVM: 4 failures: Same as #37b. Clang: 13 failures. Same as #36.
#38	r176513	2013-03-06	llvm clang	llvm-r176513 clang-r176513	.bz2 .bz2	LLVM: 3 failures: Subset of #37c. Clang: 13 failures. Same as #36.
#38b	r176513 (patched) +macho-indirect-symbol	2013-03-12	llvm clang	llvm-r176513b clang-r176513b	.bz2 .bz2	LLVM: 5 failures: Same as #38 +2 mach-o indirect-symbol test diffs (expected). See bug 14636. Clang: 13 failures. Same as #38.
#39	r176996	2013-03-14	llvm clang	llvm-r176996 clang-r176996	.bz2 .bz2	LLVM: 3 failures: Same as #38b, patched mach-o indirect-symbol tests with new ordering. Clang: 13 failures. Same as #38b.
#40	r177690	2013-03-22	llvm clang	llvm-r177690 clang-r177690	.bz2 .bz2	LLVM: 4 failures: Similar to #39 Clang: 18 failures. Similar to #39.
#41	r177835	2013-03-24	llvm clang	llvm-r177835 clang-r177835	.bz2 .bz2	LLVM: 3 failures: Similar to #40, merge fixed bug 14286 Clang: 11 failures. Similar to #39b, worked around test issue 15578.
#42	r178332	2013-03-31	llvm clang	llvm-r178332 clang-r178332	.bz2 .bz2	LLVM: 3 failures: Same as #41 (this merged in tons of PPC updates from master) Clang: 12 failures. Similar to #41
#43	r178851	2013-04-05	llvm clang	llvm-r178851 clang-r178851	.bz2 .bz2	LLVM: 5 failures: Those in #42, ExecutionEngine/test-interp-vec-loadstore.ll, tools/llvm-readobj/sections-ext.test Clang: 12 failures. Same as #42
#44	r179582	2013-04-13	llvm clang	llvm-r179582 clang-r179582	.bz2 .bz2	LLVM: 4 failures: Similar to #43, ExecutionEngine/test-interp-vec-loadstore.ll Clang: 13 failures. Similar to #43
#45	r180052	2013-04-23	llvm clang	llvm-r180052 clang-r180052	.bz2 .bz2	LLVM: 1 failure: ExecutionEngine/test-interp-vec-loadstore.ll Clang: 11 failures. Similar to #44
#45b	r180052 (-O1)	2013-04-24	llvm clang	llvm-r180052-O1 clang-r180052-O1	.bz2 .bz2	LLVM: 1 failure: ExecutionEngine/test-interp-vec-loadstore.ll Clang: 15 failures. Similar to #45, plus few more crash-recovery test failures
#45c	r180052 (-O2)	2013-04-25	llvm clang	llvm-r180052-O2 clang-r180052-O2	.bz2 .bz2	LLVM: 1 failure: Same as #45 and #45b Clang: 15 failures. Same as #45b
#46	r180675 (-O2)	2013-04-28	llvm clang	llvm-r180675-O2 clang-r180675-O2	.bz2 .bz2	LLVM: 1 failure: Same as #45c Clang: 15 failures. Same as #45c
#47	r181272 (-O2) 3.3 branch point	2013-05-08	llvm clang	llvm-r181272-O2 clang-r181272-O2	.bz2 .bz2	LLVM: 1 failure: Same as #46 Clang: 15 failures. Same as #46
#48	r181496 (-O2) towards 3.4	2013-05-09	llvm clang	llvm-r181496-O2 clang-r181496-O2	.bz2 .bz2	LLVM: 1 failure: Same as #47 Clang: 15 failures. Same as #47
#49	r181825 (-O2)	2013-05-14	llvm clang	llvm-r181825-O2 clang-r181825-O2	.bz2 .bz2	LLVM: 1 failure: Same as #48 Clang: 16 failures. Same as #47, clang:Index/annotate-deep-statements.cpp
#50	r182043 (-O2)	2013-05-16	llvm clang	llvm-r182043-O2 clang-r182043-O2	.bz2 .bz2	LLVM: 1 failure: Same as #49 Clang: 15 failures. Same as #47
#51	r182620 (-O2)	2013-05-24	llvm clang	llvm-r182620-O2 clang-r182620-O2	.bz2 .bz2	LLVM: 1 failure: Same as #49 Clang: 16 failures. Same as #47, plus Format/style-on-command-line.cpp
#52	r182745 (-O2)	2013-05-28	llvm clang	llvm-r182745-O2 clang-r182745-O2	.bz2 .bz2	LLVM: 1 failure: Same as #49 Clang: 16 failures. Same as #51
#53	r183541 (-O2)	2013-06-09	llvm clang	llvm-r183541-O2 clang-r183541-O2	.bz2 .bz2	LLVM: 2 failures: Same as #51, plus Linker/transitive-lazy-link.ll Clang: 17 failures. Same as #52, Index/annotate-deep-statements.cpp
#54	r184211 (-O2)	2013-06-18	llvm clang	llvm-r184211-O2 clang-r184211-O2	.bz2 .bz2	LLVM: 3 failures: Same as #53, plus Other/can-execute.txt Clang: 16 failures. Same as #52
#55	r184766 (-O2)	2013-06-25	llvm clang	llvm-r184766-O2 clang-r184766-O2	.bz2 .bz2	LLVM: 3 failures: Same as #54 Clang: 17 failures. Same as #54, plus Index/annotate-deep-statements.cpp
#56	r185121 (-O2)	2013-06-29	llvm clang	llvm-r185121-O2 clang-r185121-O2	.bz2 .bz2	LLVM: 4 failures: Same as #55, plus CodeGen/X86/3dnow-intrinsics.ll Clang: 16 failures. Same as #54
#57	r185852 (-O2)	2013-07-08	llvm clang	llvm-r185852-O2 clang-r185852-O2	.bz2 .bz2	LLVM: 3 failures: Same as #55 Clang: 18 failures. Same as #55, plus Analysis/html-diags.c
#58	r186054 (-O2)	2013-07-11	llvm clang	llvm-r186054-O2 clang-r186054-O2	.bz2 .bz2	LLVM: 5 failures: Same as #55, plus CodeGen/X86/nonconst-static-ev.ll, CodeGen/X86/nonconst-static-iv.ll Clang: 17 failures. Same as #57, minus Index/annotate-deep-statements.cpp
#59	r186332 (-O2)	2013-07-15	llvm clang	llvm-r186332-O2 clang-r186332-O2	.bz2 .bz2	LLVM: 3 failures: Same as #55 Clang: 17 failures. Same as #58
#60	r186533 (-O2)	2013-07-18	llvm clang	llvm-r186533-O2 clang-r186533-O2	.bz2 .bz2	LLVM: 25 failures!: Same as #59, plus Analysis/Profiling and ExecutionEngine tests Clang: 18 failures. Same as #59, plus Index/annotate-deep-statements.cpp
#61	r186828 (-O2)	2013-07-22	llvm clang	llvm-r186828-O2 clang-r186828-O2	.bz2 .bz2	LLVM: 25 failures!: Same as #60. (Recent regressions now fixed by r187027) Clang: 18 failures. Same as #60
#62	r187158 (-O2)	2013-07-26	llvm clang	llvm-r187158-O2 clang-r187158-O2	.bz2 .bz2	LLVM: 4 failures: Same as #55, plus Other/umask.ll Clang: 19 failures. Same as #60, plus Analysis/crash-trace.c
#63	r187349 (-O2)	2013-07-29	llvm clang	llvm-r187349-O2 clang-r187349-O2	.bz2 .bz2	LLVM: 5 failures: Same as #62, plus Other/pipefail.ll Clang: 18 failures. Same as #60
#64	r187618 (-O2)	2013-08-01	llvm clang	llvm-r187618-O2 clang-r187618-O2	.bz2 .bz2	LLVM: 4 failures: Same as #62 Clang: 18 failures. Same as #60
#65	r187808 (-O2)	2013-08-06	llvm clang	llvm-r187808-O2 clang-r187808-O2	.bz2 .bz2	LLVM: 3 failures: Same as #62, minus test-interp-vec-loadstore.ll Clang: 18 failures. Same as #60
#66	r188200 (-O2)	2013-08-12	llvm clang	llvm-r188200-O2 clang-r188200-O2	.bz2 .bz2	LLVM: 4 failures: Same as #65, plus MC/ELF/comp-dir.s Clang: 20 failures. Same as #65, plus Tooling/auto-detect-from-source-parent-of-cwd.cpp, Tooling/clang-check-pwd.cpp
#67	r188808 (-O2)	2013-08-21	llvm clang	llvm-r188808-O2 clang-r188808-O2	.bz2 .bz2	LLVM: 3 failures: Same as #66, minus Other/can-execute.txt Clang: 23 failures. Same as #66, plus SemaCXX/warn-consumed-analysis, Parser/crash-report.c
#68	r189234 (-O2)	2013-08-26	llvm clang	llvm-r189234-O2 clang-r189234-O2	.bz2 .bz2	LLVM: 4 failures: Same as #67, plus Transforms/SLPVectorizer/X86/insert-element-build-vector.ll Clang: 23 failures. Same as #67
#69	r189830 (-O2)	2013-09-04	llvm clang	llvm-r189830-O2 clang-r189830-O2	.bz2 .bz2	LLVM: 4 failures: Same as #66, plus DebugInfo/llvm-symbolizer.test, Object/archive-symtab.test Clang: 21 failures. Same as #67, plus ASTMatchers/Dynamic/DynamicASTMatchersTests/RegistryTest.Errors, minus Format/style-on-command-line.cpp, Frontend/verify.c, Index/annotate-deep-statements.cpp
#70	r190317 (-O2)	2013-09-10	llvm clang	llvm-r190317-O2 clang-r190317-O2	.bz2 .bz2	LLVM: 4 failures: Same as #69 Clang: 21 failures. Same as #69
#71	r190775 (-O2)	2013-09-17	llvm clang	llvm-r190775-O2 clang-r190775-O2	.bz2 .bz2	LLVM: 4 failures: Same as #69 Clang: 21 failures. Same as #69
#72	r191209 (-O2)	2013-09-24	llvm clang	llvm-r191209-O2 clang-r191209-O2	.bz2 .bz2	LLVM: 5 failures: Same as #69, plus Object/archive-extract-dir.test Clang: 22 failures. Same as #69, plus Index/annotate-deep-statements.cpp
#73	r191696 (-O2)	2013-10-01	llvm clang	llvm-r191696-O2 clang-r191696-O2	.bz2 .bz2	LLVM: 4 failures: Same as #69 Clang: 23 failures. Same as #72
#74	r192608 (-O2)	2013-10-05	llvm clang	llvm-r192608-O2 clang-r192608-O2	.bz2 .bz2	LLVM: 4 failures: Same as #69 Clang: 23 failures. Same as #72
#75	r192115 (-O2)	2013-10-15	llvm clang	llvm-r192115-O2 clang-r192115-O2	.bz2 .bz2	LLVM: 204 failures: lots of CodeGen/PowerPC, some CodeGen/ARM, some DebugInfo/PowerPC Clang: 21 failures.
#76	r193096 (-O2)	2013-10-22	llvm clang compiler-rt	llvm-r193096-O2 clang-r193096-O2 --	.bz2 .bz2 --	LLVM: 4 failures: same as #69 Clang: 21 failures: same as #75
#77	r193509 (-O2)	2013-10-28	llvm clang compiler-rt	llvm-r193509-O2 clang-r193509-O2 --	.bz2 .bz2 --	LLVM: 4 failures: same as #69 Clang: 22 failures: same as #75, plus Misc/permissions.cpp
#78	r194001 (-O2)	2013-11-04	llvm clang compiler-rt	llvm-r194001-O2 clang-r194001-O2 --	.bz2 .bz2 --	LLVM: 4 failures: same as #69 Clang: 22 failures: same as #75
#79	r194745 (-O2, cctools-698)	2013-11-14	llvm clang compiler-rt	llvm-r194745-O2 clang-r194745-O2 --	.bz2 .bz2 --	LLVM: 5 failures: same as #69, plus tools/llvm-cov/llvm-cov.test Clang: 21 failures: same as #75, minus Index/ms-asm-no-target.cpp
#80	r195078 (-O2, cctools-698)	2013-11-21	llvm clang compiler-rt	llvm-r195078-O2 clang-r195078-O2 --	.bz2 .bz2 --	LLVM: 4 failures: same as #69 Clang: 21 failures: same as #75
#81	r195504 (apple-g++-4.0.1, -O2, cctools-698)	2013-11-25	llvm clang compiler-rt	llvm-r195504-O2 clang-r195504-O2 --	.bz2 .bz2 --	LLVM: 2 failures: same as #69 (improved TestRunner) Clang: 14 failures: same as #75 (mostly crash-tests and ObjC, improved TestRunner)
#82	r195934 (apple-g++-4.0.1, -O2, cctools-698)	2013-12-01	llvm clang compiler-rt	llvm-r195934-O2 clang-r195934-O2 --	.bz2 .bz2 --	LLVM: 2 failures: same as #81 Clang: 14 failures: same as #81, plus Frontend/rewrite-includes-bom.c
#83	r196472 (apple-g++-4.0.1, -O2, cctools-698)	2013-12-05	llvm clang compiler-rt	llvm-r196472-O2 clang-r196472-O2 --	.bz2 .bz2 --	LLVM: 2 failures: same as #81 Clang: 14 failures: same as #81, plus Driver/ccc-host-triple-no-integrated-as.c
#84	r197113 (apple-g++-4.0.1, -O2, cctools-698)	2013-12-11	llvm clang compiler-rt	llvm-r197113-O2 clang-r197113-O2 --	.bz2 .bz2 --	LLVM: 5 failures: same as #81, plus CodeGen/PowerPC/tls-pic.ll, CodeGen/PowerPC/tls.ll, ExecutionEngine/test-fp.ll Clang: 15 failures: same as #81, plus Index/comment-to-html-xml-conversion.cpp
#85	r197439 (apple-g++-4.0.1, -O2, cctools-698)	2013-12-17	llvm clang compiler-rt	llvm-r197439-O2 clang-r197439-O2 --	.bz2 .bz2 --	LLVM: 3 failures: same as #81, ExecutionEngine/test-fp.ll Clang: 15 failures: same as #84
#86	r197897 (apple-g++-4.0.1, -O2, cctools-698)	2013-12-23	llvm clang compiler-rt	llvm-r197897-O2 clang-r197897-O2 --	.bz2 .bz2 --	LLVM: 2 failures: same as #81 Clang: 15 failures: same as #84
#86.2a (stage-2!)	r197897 +FDE patch (clang-3.5 from #86, -O0 -no-integraed-as)	2013-12-24	llvm clang compiler-rt	llvm-r197897-O0 clang-r197897-O0 --	.bz2 .bz2 --	LLVM: 9 failures: same as #81, plus Analysis/CostModel/X86/testshiftshl.ll, CodeGen/Generic/APIntLoadStore.ll, CodeGen/X86/sse2-mul.ll, ... Clang: 11 failures: mostly ObjC and crash-recovery tests
#86.2b (stage-2!)	r197897 +FDE patch (clang-3.5 from #86, -O1 -no-integraed-as)	2013-12-25	llvm clang compiler-rt	llvm-r197897-O1 clang-r197897-O1 --	.bz2 .bz2 --	LLVM: 28 failures: same as #81, plus CodeGen/fast-isel, ... Clang: 9 failures: same as #86.2a
#87	release-3.4 RC1 (apple-g++-4.0.1, -O2, cctools-698)	2014-01-03	llvm clang compiler-rt	llvm-3.4-RC1 clang-3.4-RC1 --	.bz2 .bz2 --	LLVM: 2 failures: same as #81 Clang: 13 failures: mostly crash-recovery and ObjC related
#88	r198872 (apple-g++-4.0.1, -O2, cctools-698)	2014-01-10	llvm clang compiler-rt	llvm-r198872-O2 clang-r198872-O2 --	.bz2 .bz2 --	LLVM: 2 failures: same as #81 Clang: 11 failures: mostly crash-recovery and ObjC related
#89	r199553 (apple-g++-4.0.1, -O2, cctools-698)	2014-01-18	llvm clang compiler-rt	llvm-r199553-O2 clang-r199553-O2 --	.bz2 .bz2 --	LLVM: 2 failures: same as #81 Clang: 11 failures: same as #88
#90	r200309 (apple-g++-4.0.1, -O2, cctools-698)	2014-01-28	llvm clang compiler-rt	llvm-r200309-O2 clang-r200309-O2 compiler-rt-r200309-O2	.bz2 .bz2 .bz2	LLVM: 2 failures: same as #81 Clang: 11 failures: same as #88 compiler-rt: 6 failures: divdc3_test, divsc3_test, divtc3_test, muldc3_test, mulsc3_test, multc3_test
#91	r200794 (apple-g++-4.0.1, -O2, cctools-698)	2014-02-04	llvm clang compiler-rt	llvm-r200794-O2 clang-r200794-O2 compiler-rt-r200794-O2	.bz2 .bz2 .bz2	LLVM: 2 failures: same as #81 Clang: 10 failures: same as #88, minus Index/annotate-deep-statements.cpp compiler-rt: 6 failures: divdc3_test, divsc3_test, divtc3_test, muldc3_test, mulsc3_test, multc3_test
#92	r201116 (apple-g++-4.0.1, -O2, cctools-698)	2014-02-10	llvm clang compiler-rt	llvm-r201116-O2 clang-r201116-O2 compiler-rt-r201116-O2	.bz2 .bz2 .bz2	LLVM: 2 failures: same as #81 Clang: 11 failures: same as #88 compiler-rt: 6 failures: unchanged
#93	r201507 (apple-g++-4.0.1, -O2, cctools-698)	2014-02-17	llvm clang compiler-rt	llvm-r201507-O2 clang-r201507-O2 compiler-rt-r201507-O2	.bz2 .bz2 .bz2	LLVM: 2 failures: same as #81 Clang: 11 failures: same as #88 compiler-rt: 6 failures: divdc3_test, divsc3_test, divtc3_test, muldc3_test, mulsc3_test, multc3_test
#94	r202302 (apple-g++-4.0.1, -O2, cctools-698)	2014-02-27	llvm clang compiler-rt	llvm-r202302-O2 clang-r202302-O2 compiler-rt-r202302-O2	.bz2 .bz2 .bz2	LLVM: 2 failures: same as #81 Clang: 11 failures: same as #88 compiler-rt: --
#95	r202541 (last pre-C++11) (apple-g++-4.0.1, -O2, cctools-698)	2014-03-01	llvm clang compiler-rt	llvm-r202541-O2 clang-r202541-O2 compiler-rt-r202541-O2	.bz2 .bz2 .bz2	LLVM: 6 failures: same as #81, plus reg-to-reg-copy [bug 19028] Clang: 12 failures: same as #88, plus compiler-rt: --

r202541 is the last revision of trunk before -std=c++11 is required by the host compiler. Although at this point, both trunk and the release-3.4 branch contain known bugs, such as ABI/data-layout incompatibility, we are still able to build llvm/clang using the release-3.4 branch (fink-packaged at revision -0e), including libc++. As we continue to fix against trunk, we will backport relevant fixes to the release-3.4 branch. Onward to 3.5!

compiler-rt status

libc++ status

Building libc++abi

• paths are hard-coded to my environment, re-define variables as you see fit
• Using libunwind headers from /usr/lib/gcc/TRIPLE and library from /usr/lib/libgcc_s.10.4.dylib
• includes libcxx header from its source dir (but should not result in symbol dependencies to libcxx)
• -fPIC -fno-common for shared library objects
• -O0 because -O1 is broken by bug 14579
• -gdwarf2 because that's the only DWARF that the old cctools support
• -no-integrated-as because integrated-as results in relocation entry in non-writable section (__TEXT,__eh_frame) (TODO: file bug)
• install-time install-name-tool on .dylib

• bug 17505: libcxxabi test failures: possible incompatible __eh_frame unwind info emitted for powerpc-darwin8
• bug 17513: port libcxxabi's libunwind to powerpc-darwin8

Using libsupc++.a

Building libc++

• replace Availability.h with AvailabilityMacros.h in a few headers

When using libc++abi only

• LIBCXX_LIBCXXABI_INCLUDE_PATHS:STRING=/usr/local/experimental/llvm/include/libcxxabi

• -L/usr/local/experimental/llvm/lib/libcxxabi for libc++abi.dylib
• -L/usr/local/experimental/llvm/lib/clang/3.3/lib/darwin -lclang_rt.ppc
• -lgcc_s.10.4 for libunwind
• -lSystemStubs for _printf$LDBLStub

Using libsupc++.a

Known Issues

• exception_ptr not yet implemented (dependent EH ABI)
• 64b atomic operations not yet supported (using compiler built-ins) on PowerPC32

Polly status

Dependencies (versions of fink packages that I happen to be building against):

• gmp-5.1.1: libgmp.10.dylib (compatibility version 12.0.0, current version 12.1.0)
• isl-0.11.1: libisl.10.dylib (compatibility version 12.0.0, current version 12.1.0)
• cloog-0.18.0: libcloog-isl.4.dylib (compatibility version 5.0.0, current version 5.0.0)

Stage 2 status

• build type Debug with debug turned off, optimizations off -g0 -O0
• CMAKE_CXX_FLAGS:STRING=-I/usr/lib/gcc/powerpc-apple-darwin8/4.0.1/include -fno-common -no-integrated-as -fno-dwarf2-cfi-asm
  include path to pick up system's stddef.h and stdint.h headers over clang's
• CMAKE_*_LINKER_FLAGS:STRING=-target 10.4 to help linker driver
• CMAKE_SHARED_LINKER_FLAGS:STRING=-L${stage1-build-dir}/lib/clang/3.3/lib/darwin -lclang_rt.ppc for ___floatundidf
  Doesn't quite work yet: command inserts this option too early

Stage 1 optimization

• lib/Analysis/ScalarEvolution{,Expander}.cpp run out of stack space during -O1 compilation
• lib/Transforms/Utils/{BreakCriticalEdges,LoopUnroll}.cpp run out of stack space during -O1 compilation
• lib/Transforms/Scalar/{LoopInstSimplify,LoopRotation,LoopUnswitch}.cpp run out of stack space during -O1 compilation
• lib/CodeGen/{MachineBasicBlock,MachineBlockPlacement,MachineTraceMetrics,PHIElimination}.cpp run out of stack space during -O1 compilation

Reported Issues

• bug 14579: missing llvm::raw_string_ostream for powerpc-darwin8 (MC) -- optimization bug: -O1 drops symbol declarations from asm
• feature 16885: support for PowerPC in RuntimeDyldMachO.cpp
• bug 17505: libcxxabi test failures: possible incompatible __eh_frame unwind info emitted for powerpc-darwin8 -- still needed even if using libsupc++
• bug 17513: port libcxxabi's libunwind to powerpc-darwin8 -- don't need this if using /usr/lib/libsupc++.a
• bug 18463: mach-o PPC CPU subtype differs/ignored -- .machine directive?

• bug 15901: llvm-tblgen crash in stage-2 -- works at r197897! backported to powerpc-darwin8-rel-3.4 branch
• bug 15965: stage-2 ADTTests crash -- works at r197897! backported to powerpc-darwin8-rel-3.4 branch
• feature 16701: request for darwin PowerPC asm support in PPCAsmParser -- implmented by r197324, by Iain Sandoe
• bug 18237: linker rejects __TEXT,__literal16 section -- workaround: use newer linker, e.g. odcctools-2009
• bug 15554: C++ front-end assertion fail -- platform-independent, crash-on-valid C++ front-end bug
• bug 14636: Relocation emission for Mach-O/PPC unimplemented. -- This is now somewhat working on the powerpc-darwin8 branch... merged to trunk r188004!
• bug 16694: test ExecutionEngine/test-interp-vec-loadstore.ll failing -- fixed by r187791
• bug 16169: Invalid PPC CTR Loop! -- fixed by r183581
• bug 15821: assertion failure in CodeGen/MachineInstr.cpp: "invalid pointer value" -- fixed on branch (2013-05-01), and on trunk r181449 (missed release 3.3)
• bug 15763: PPC asm relocation overflow, displacement too large -- fixed on branch, and on trunk at r180657
• bug 15726: clang emits wrong symbol for std::ostream::write (PPC32) -- solution patch available
• bug 15530: clang driver linker option, bad -macosx_version_min value on darwin8 -- have workaround patch
• bug 14286: EmitRawText called on MCStreamer on unsupported -- fixed by r177830, merged to branch
• bug 14387: stage 2 powerpc-darwin8 external assembler rejects .line directives [old assembler needs -gdwarf2 instead of -g]
• bug 3830: clang-driver 32b ppc arch name incorrect -- Not an issue with Darwin_Generic_GCC toolchain, just with DarwinClang, patched to hack arch name in driver
• bug 11777 (dup 14283): Assertion failed: VMCore/Instructions.cpp:1080 "Ptr must be a pointer to Val type!" [fixed by r167802]
• bug 14275: clang test failures: unknown target triple 'unknown-apple-darwin8', expected 'powerpc' [diagnosed, fixed on trunk, verified r167855]
• bug 14244: clang APInt/APSInt asssertions failing everywhere (memory corruption?) [root-caused, workaround: force LLVM_READONLY to be blank for gcc-4.0]
• bug 12444: MachineBasicBlock.cpp failed assertion 'isInsideBundle' everywhere [WORKSFORME, tested r167261]
• bug 11933: clang crashes on long double constants on powerpc [FIXED, as of r166958]
• bug 14278: LLVM test failures: AllocationTests/MappedMemoryTest* [have partial patch to reduce failing tests], suddenly works as of r169799
• bug 11892: generated code crashes on powerpc-darwin8, using simple C++ test that calls libstdc++ -- works as of r167855
• bug 18316: PPCAsmPrinter emits bad addis instruction -- workaround: use -integrated-as
• bug 18461: [libc++] size_type static_assert failures

Priorities

1. Achieve a successful 3-stage bootstrap of llvm/clang at -O0 -no-integrated-as
• Stage-1 may soon require a C++11 host compiler (between release 3.4 and 3.5), but gcc-4.0 and 4.2 do not qualify
• gcc-4.6+ do qualify for C++11, but have their own issues building llvm/clang, showing test failures
• requires a working C++11 Standard Library. A stage-1 built clang could build libc++, (using libsupc++ instead of libc++abi) -- early testing shows around 5% fail rate in libc++'s test suite.
2. For bootstrapping purposes, new host compiler just needs to work enough to compile, even if it itself is ABI incompatible.