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Juneyoung Lee 5207cde5cb [InstCombine] Conditionally fold select i1 into and/or 
This patch fixes llvm.org/pr49688 by conditionally folding select i1 into and/or:

```
select cond, cond2, false
->
and cond, cond2
```

This is not safe if cond2 is poison whereas cond isn’t.

Unconditionally disabling this transformation affects later pipelines that depend on and/or i1s.
To minimize its impact, this patch conservatively checks whether cond2 is an instruction that
creates a poison or its operand creates a poison.
This approach is similar to what InstSimplify's SimplifyWithOpReplaced is doing.

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D99674
 		2021-04-04 14:11:28 +09:00
..
Analysis [funcattrs] Infer nosync from readnone and non-convergent 2021-04-01 11:37:34 -07:00
Assembler Reapply "OpaquePtr: Turn inalloca into a type attribute" 2021-03-29 08:55:30 -04:00
Bindings [OCaml][Test] Fix and enable debuginfo.ml test 2021-03-28 06:25:39 +05:30
Bitcode Reapply "OpaquePtr: Turn inalloca into a type attribute" 2021-03-29 08:55:30 -04:00
BugPoint
…
CodeGen [FastISel] Remove kill tracking 2021-04-03 15:50:13 +02:00
DebugInfo [DebugInfo] Support for signed constants inside DIExpression 2021-03-30 23:20:38 +05:30
Demangle
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Examples [Orc][examples] Add LLJITWithRemoteDebugging example 2021-03-28 17:25:09 +02:00
ExecutionEngine [lli] Leaving two EH frame tests with MCJIT only after PowerPC failure 2021-03-30 12:28:22 +02:00
Feature
…
FileCheck [FileCheck] Fix -dump-input per-pattern diagnostic indexing 2021-03-27 10:36:21 -04:00
Instrumentation Reapply "OpaquePtr: Turn inalloca into a type attribute" 2021-03-29 08:55:30 -04:00
Integer Re-apply "[lli] Make -jit-kind=orc the default JIT engine" 2021-03-30 12:08:26 +02:00
JitListener
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LTO Remove dead CHECK-ERR line. 2021-03-30 09:31:00 -07:00
Linker Reapply "OpaquePtr: Turn inalloca into a type attribute" 2021-03-29 08:55:30 -04:00
MC [RISCV] Improve 64-bit integer constant materialization for more cases. 2021-04-02 10:18:08 -07:00
MachineVerifier [GlobalISel] Add G_ROTR and G_ROTL opcodes for rotates. 2021-03-25 17:23:30 -07:00
Object [TextAPI] Add support for arm64_32 2021-04-01 17:19:12 -07:00
ObjectYAML [WebAssembly] Rename WasmLimits::Initial to ::Minimum. NFC. 2021-03-24 09:10:11 +01:00
Other [PassManager] Run additional LICM before LoopRotate 2021-04-02 11:11:42 +03:00
SafepointIRVerifier
…
Support
…
SymbolRewriter
…
TableGen [TableGen] Add support for the 'assert' statement in class definitions. 2021-03-29 09:20:29 -04:00
ThinLTO/X86 Don't use $ as suffix for symbol names in ThinLTOBitcodeWriter and other places 2021-03-29 13:03:52 +02:00
Transforms [InstCombine] Conditionally fold select i1 into and/or 2021-04-04 14:11:28 +09:00
Unit [lit] Sort test start times based on prior test timing data 2021-03-16 05:23:04 -04:00
Verifier [DebugInfo] Upgrade DISubragne::count to accept DIExpression also 2021-03-30 09:16:55 +05:30
YAMLParser
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tools [ms] [llvm-ml] Accept /WX to signal that warnings should be fatal. 2021-04-02 15:13:20 -04:00
.clang-format
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CMakeLists.txt Conditionalize the JIT test dependency 2021-03-30 13:04:02 -07:00
TestRunner.sh
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lit.cfg.py Revert "[IRSim] Adding basic implementation of llvm-sim." 2021-03-20 18:03:09 -05:00
lit.site.cfg.py.in [test] Add ability to get error messages from CMake for errc substitution 2021-03-15 20:56:08 +01:00