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* CodeGen: move over-zealous assert into actual if statement.Tim Northover2015-05-061-0/+19
| | | | | | | | | | | | | | | It's quite possible to encounter an insertvalue instruction that's more deeply nested than the value we're looking for, but when that happens we really mustn't compare beyond the end of the index array. Since I couldn't see any guarantees about what comparisons std::equal makes, we probably need to directly check the size beforehand. In practice, I suspect most std::equal implementations would probably bail early, which would be OK. But just in case... rdar://20834485 llvm-svn: 236635
* CodeGen: match up correct insertvalue indices when assessing tail calls.Tim Northover2015-05-041-0/+19
| | | | | | | | | | | | When deciding whether a value comes from the aggregate or inserted value of an insertvalue instruction, we compare the indices against those of the location we're interested in. One of the lists needs reversing because the input data is backwards (so that modifications take place at the end of the SmallVector), but we were reversing both before leading to incorrect results. Should fix PR23408 llvm-svn: 236457
* [ARM,AArch64] Do not tail-call to an externally-defined function with weak ↵Oliver Stannard2014-08-181-0/+11
| | | | | | | | | | | | | linkage Externally-defined functions with weak linkage should not be tail-called on ARM or AArch64, as the AAELF spec requires normal calls to undefined weak functions to be replaced with a NOP or jump to the next instruction. The behaviour of branch instructions in this situation (as used for tail calls) is implementation-defined, so we cannot rely on the linker replacing the tail call with a return. llvm-svn: 215890
* AArch64/ARM64: move ARM64 into AArch64's placeTim Northover2014-05-241-57/+7
| | | | | | | | | | | | | | | This commit starts with a "git mv ARM64 AArch64" and continues out from there, renaming the C++ classes, intrinsics, and other target-local objects for consistency. "ARM64" test directories are also moved, and tests that began their life in ARM64 use an arm64 triple, those from AArch64 use an aarch64 triple. Both should be equivalent though. This finishes the AArch64 merge, and everyone should feel free to continue committing as normal now. llvm-svn: 209577
* AArch64/ARM64: remove AArch64 from tree prior to renaming ARM64.Tim Northover2014-05-241-1/+0
| | | | | | | | | | | | | | | | I'm doing this in two phases for a better "git blame" record. This commit removes the previous AArch64 backend and redirects all functionality to ARM64. It also deduplicates test-lines and removes orphaned AArch64 tests. The next step will be "git mv ARM64 AArch64" and rewire most of the tests. Hopefully LLVM is still functional, though it would be even better if no-one ever had to care because the rename happens straight afterwards. llvm-svn: 209576
* [ARM64] Support aggressive fastcc/tailcallopt breaking ABI by popping out ↵Jiangning Liu2014-05-151-4/+55
| | | | | | argument stack from callee. llvm-svn: 208837
* Mass update to CodeGen tests to use CHECK-LABEL for labels corresponding to ↵Stephen Lin2013-07-141-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | function definitions for more informative error messages. No functionality change and all updated tests passed locally. This update was done with the following bash script: find test/CodeGen -name "*.ll" | \ while read NAME; do echo "$NAME" if ! grep -q "^; *RUN: *llc.*debug" $NAME; then TEMP=`mktemp -t temp` cp $NAME $TEMP sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \ while read FUNC; do sed -i '' "s/;\(.*\)\([A-Za-z0-9_-]*\):\( *\)$FUNC: *\$/;\1\2-LABEL:\3$FUNC:/g" $TEMP done sed -i '' "s/;\(.*\)-LABEL-LABEL:/;\1-LABEL:/" $TEMP sed -i '' "s/;\(.*\)-NEXT-LABEL:/;\1-NEXT:/" $TEMP sed -i '' "s/;\(.*\)-NOT-LABEL:/;\1-NOT:/" $TEMP sed -i '' "s/;\(.*\)-DAG-LABEL:/;\1-DAG:/" $TEMP mv $TEMP $NAME fi done llvm-svn: 186280
* Add explicit triples to AArch64 testsTim Northover2013-02-011-1/+1
| | | | | | | | Only Linux is supported at the moment, and other platforms quickly fault. As a result these tests would fail on non-Linux hosts. It may be worth making the tests more generic again as more platforms are supported. llvm-svn: 174170
* Add AArch64 as an experimental target.Tim Northover2013-01-311-0/+94
This patch adds support for AArch64 (ARM's 64-bit architecture) to LLVM in the "experimental" category. Currently, it won't be built unless requested explicitly. This initial commit should have support for: + Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions (except the late addition CRC instructions). + CodeGen features required for C++03 and C99. + Compilation for the "small" memory model: code+static data < 4GB. + Absolute and position-independent code. + GNU-style (i.e. "__thread") TLS. + Debugging information. The principal omission, currently, is performance tuning. This patch excludes the NEON support also reviewed due to an outbreak of batshit insanity in our legal department. That will be committed soon bringing the changes to precisely what has been approved. Further reviews would be gratefully received. llvm-svn: 174054
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