[RISCV] Implement computeKnownBitsForTargetNode for SHL_ADD #159105

pfusik · 2025-09-16T14:27:48Z

No description provided.

llvmbot · 2025-09-16T14:28:23Z

@llvm/pr-subscribers-backend-risc-v

Author: Piotr Fusik (pfusik)

Changes

Patch is 53.61 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/159105.diff

3 Files Affected:

(modified) llvm/lib/Target/RISCV/RISCVISelLowering.cpp (+9)
(modified) llvm/test/CodeGen/RISCV/rv32zba.ll (+35)
(modified) llvm/test/CodeGen/RISCV/rv64zba.ll (+35)

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...
[truncated]

topperc · 2025-09-16T17:02:27Z

llvm/lib/Target/RISCV/RISCVISelLowering.cpp

Use Op.getConstantOperandVal(1). It's always a constant. No need to go through computeKnownBits.

Oh, but then I guess you can't use KnownBits::shl. So you'll have to use Known >>= ShAmt; Known.Zero.setHighBits(ShAmt);

Done. I assume you meant <<= and setLowBits.

Done. I assume you meant <<= and setLowBits.

I did. Sorry about that.

pfusik · 2025-09-17T06:07:10Z

Rebased resolving conflicts in the tests.

topperc

LGTM

llvm-ci · 2025-09-17T16:08:26Z

LLVM Buildbot has detected a new failure on builder lldb-x86_64-debian running on lldb-x86_64-debian while building llvm at step 6 "test".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/162/builds/31330

Here is the relevant piece of the build log for the reference

Step 6 (test) failure: build (failure)
...
PASS: lldb-api :: commands/watchpoints/watchpoint_events/TestWatchpointEvents.py (848 of 3192)
PASS: lldb-api :: lang/cpp/class-loading-via-member-typedef/TestClassLoadingViaMemberTypedef.py (849 of 3192)
PASS: lldb-api :: linux/add-symbols/TestTargetSymbolsAddCommand.py (850 of 3192)
PASS: lldb-api :: functionalities/target_var/no_vars/TestTargetVarNoVars.py (851 of 3192)
PASS: lldb-api :: linux/sepdebugsymlink/TestTargetSymbolsSepDebugSymlink.py (852 of 3192)
PASS: lldb-api :: commands/watchpoints/watchpoint_on_vectors/TestValueOfVectorVariable.py (853 of 3192)
PASS: lldb-api :: lang/cpp/non-type-template-param/TestCppNonTypeTemplateParam.py (854 of 3192)
PASS: lldb-api :: lang/cpp/elaborated-types/TestElaboratedTypes.py (855 of 3192)
PASS: lldb-api :: lang/cpp/static_member_type_depending_on_parent_size/TestStaticMemberTypeDependingOnParentSize.py (856 of 3192)
PASS: lldb-api :: commands/expression/error-limit/TestExprErrorLimit.py (857 of 3192)
FAIL: lldb-api :: functionalities/postmortem/netbsd-core/TestNetBSDCore.py (858 of 3192)
******************** TEST 'lldb-api :: functionalities/postmortem/netbsd-core/TestNetBSDCore.py' FAILED ********************
Script:
--
/usr/bin/python3 /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/dotest.py -u CXXFLAGS -u CFLAGS --env LLVM_LIBS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./lib --env LLVM_INCLUDE_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/include --env LLVM_TOOLS_DIR=/home/worker/2.0.1/lldb-x86_64-debian/build/./bin --arch x86_64 --build-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex --lldb-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-lldb/lldb-api --clang-module-cache-dir /home/worker/2.0.1/lldb-x86_64-debian/build/lldb-test-build.noindex/module-cache-clang/lldb-api --executable /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/lldb --compiler /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/clang --dsymutil /home/worker/2.0.1/lldb-x86_64-debian/build/./bin/dsymutil --make /usr/bin/gmake --llvm-tools-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./bin --lldb-obj-root /home/worker/2.0.1/lldb-x86_64-debian/build/tools/lldb --lldb-libs-dir /home/worker/2.0.1/lldb-x86_64-debian/build/./lib --cmake-build-type Release -t /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/functionalities/postmortem/netbsd-core -p TestNetBSDCore.py
--
Exit Code: -6

Command Output (stdout):
--
lldb version 22.0.0git (https://github.com/llvm/llvm-project.git revision 7a098aecb65cc6ca9c877825c9436a51c36ab48d)
  clang revision 7a098aecb65cc6ca9c877825c9436a51c36ab48d
  llvm revision 7a098aecb65cc6ca9c877825c9436a51c36ab48d
Skipping the following test categories: ['libc++', 'msvcstl', 'dsym', 'gmodules', 'debugserver', 'objc']

--
Command Output (stderr):
--
Change dir to: /home/worker/2.0.1/lldb-x86_64-debian/llvm-project/lldb/test/API/functionalities/postmortem/netbsd-core
runCmd: settings clear --all

output: 

runCmd: settings set symbols.enable-external-lookup false

output: 

runCmd: settings set target.inherit-tcc true

output: 

runCmd: settings set target.disable-aslr false

output: 

runCmd: settings set target.detach-on-error false

output:

llvmbot added the backend:RISC-V label Sep 16, 2025

topperc reviewed Sep 16, 2025

View reviewed changes

pfusik added 3 commits September 17, 2025 07:59

[RISCV][test] Add tests for SHL_ADD KnownBits

4d2b2aa

[RISCV] Implement computeKnownBitsForTargetNode for SHL_ADD

750a26a

[RISCV] Assume constant shift amount

81b644f

pfusik force-pushed the kb-shladd branch from 68f7f51 to 81b644f Compare September 17, 2025 06:06

topperc approved these changes Sep 17, 2025

View reviewed changes

pfusik merged commit 7a098ae into llvm:main Sep 17, 2025
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Uh oh!

[RISCV] Implement computeKnownBitsForTargetNode for SHL_ADD #159105

[RISCV] Implement computeKnownBitsForTargetNode for SHL_ADD #159105

Uh oh!

pfusik commented Sep 16, 2025

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[RISCV] Implement computeKnownBitsForTargetNode for SHL_ADD #159105

[RISCV] Implement computeKnownBitsForTargetNode for SHL_ADD #159105

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