7 Commits

Author	SHA1	Message	Date
Juneyoung Lee	578d2e2cb1	[llvm-extract] Add -keep-const-init commandline option ... Summary: This adds -keep-const-init option to llvm-extract which preserves initializers of used global constants. For example: ``` $ cat a.ll @g = constant i32 0 define i32 @f() { %v = load i32, i32* @g ret i32 %v } $ llvm-extract --func=f a.ll -S -o - @g = external constant i32 define i32 @f() { .. } $ llvm-extract --func=f a.ll -keep-const-init -S -o - @g = constant i32 0 define i32 @f() { .. } ``` This option is useful in checking whether a function that uses a constant global is optimized correctly. Reviewers: jsji, MaskRay, david2050 Reviewed By: MaskRay Subscribers: hiraditya, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D73833	2020-02-03 14:30:28 +09:00
Quentin Colombet	2d977935a2	[llvm-extract] Expose the group extraction feature of the BlockExtractor ... This patch extends the `-bb` option to be able to use the group extraction feature from the BlockExtractor. In particular, `-bb=func:bb` is modified to support a list of basic blocks per function: `-bb=func:bb1[;bb2...]` that will be extracted together if at all possible (region must be single entry.) Differential Revision: https://reviews.llvm.org/D60973 llvm-svn: 359464	2019-04-29 16:14:03 +00:00
David Callahan	f498bdcebf	Include invoke'd functions for recursive extract ... Summary: When recursively extracting a function from a bit code file, include functions mentioned in InvokeInst as well as CallInst Reviewers: loladiro, espindola, volkan Reviewed By: loladiro Subscribers: llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D60231 llvm-svn: 357735	2019-04-04 23:30:47 +00:00
Teresa Johnson	c8dba682bb	[hot-cold-split] Name split functions with ".cold" suffix ... Summary: The current default of appending "_"+entry block label to the new extracted cold function breaks demangling. Change the deliminator from "_" to "." to enable demangling. Because the header block label will be empty for release compile code, use "extracted" after the "." when the label is empty. Additionally, add a mechanism for the client to pass in an alternate suffix applied after the ".", and have the hot cold split pass use "cold."+Count, where the Count is currently 1 but can be used to uniquely number multiple cold functions split out from the same function with D53588. Reviewers: sebpop, hiraditya Subscribers: llvm-commits, erik.pilkington Differential Revision: https://reviews.llvm.org/D53534 llvm-svn: 345178	2018-10-24 18:53:47 +00:00
Volkan Keles	4ecdb44a64	BlockExtractor: Don’t delete functions directly ... Blocks may have function calls, so don’t erase functions directly to avoid erasing a function that has a user. llvm-svn: 327340	2018-03-12 22:28:18 +00:00
Volkan Keles	dc40be75f8	[llvm-extract] Support extracting basic blocks ... Summary: Currently, there is no way to extract a basic block from a function easily. This patch extends llvm-extract to extract the specified basic block(s). Reviewers: loladiro, rafael, bogner Reviewed By: bogner Subscribers: hintonda, mgorny, qcolombet, llvm-commits Differential Revision: https://reviews.llvm.org/D41638 llvm-svn: 323266	2018-01-23 21:51:34 +00:00
Keno Fischer	1505de5495	[llvm-extract] Add option for recursive extraction ... Summary: Particularly, with --delete, this can be very useful for testing new optimizations on some hotspots, without having to run it on the whole application. E.g. as such: ``` llvm-extract app.bc --recursive --rfunc .*hotspot.* > hotspot.bc llvm-extract app.bc --recursive --delete --rfunc .*hotspot.* > residual.bc llc -filetype=obj residual.bc > residual.o llc -filetype=obj hotspot.bc > hotspot.o cc -o app residual.o hotspot.o ``` Reviewed By: davide Differential Revision: https://reviews.llvm.org/D31722 llvm-svn: 299706	2017-04-06 20:51:40 +00:00