[cpullvm] Add basic information about multilib#255
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jonathonpenix merged 2 commits intoqualcomm:qualcomm-softwarefrom Mar 11, 2026
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[cpullvm] Add basic information about multilib#255jonathonpenix merged 2 commits intoqualcomm:qualcomm-softwarefrom
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| ## Multilib | ||
| CPULLVM automatically selects a set of headers and runtimes libraries to use when compiling and linking based on | ||
| the set of arguments passed on the command line. A warning will be emitted if no appropriate set of headers/libraries | ||
| can be found. |
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can the warning be suppressed if build has to be clean of warnings, please indicate how
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It works the same as any other warning.
I'm hesitant to put it here--people should not be disabling this unless they know what they're up to, at which point they should be able to figure out how to turn the warning off.
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this might be information useful in the migration guide - please if you do not want to add it here, share it with CE team
While here, also update our main README to point to new docs we've added or updated. Signed-off-by: Jonathon Penix <jpenix@qti.qualcomm.com>
Fixups per reviewer feedback Signed-off-by: Jonathon Penix <jpenix@qti.qualcomm.com>
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/cherry-pick be45ff1 |
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/pull-request #261 |
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While here, also update our main README to point to new docs we've added or updated. (cherry picked from commit be45ff1) Signed-off-by: Jonathon Penix <jpenix@qti.qualcomm.com> Co-authored-by: Jonathon Penix <jpenix@qti.qualcomm.com>
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Fixes llvm/llvm-project#169270 Changes the implementation of `is_finite` to emit fewer instructions, e.g. X86_64 ```asm old: # 18 bytes movd %xmm0, %eax andl $2147483647, %eax cmpl $2139095040, %eax setl %al retq new: # 15 bytes movd %xmm0, %eax addl %eax, %eax cmpl $-16777216, %eax setb %al retq ``` Aarch64 ```asm old: fmov w9, s0 mov w8, #2139095040 and w9, w9, #0x7fffffff cmp w9, w8 cset w0, lt ret new: fmov w8, s0 ubfx w8, w8, qualcomm#23, qualcomm#8 cmp w8, qualcomm#255 cset w0, lo ret ``` See the issue for more information. (cherry picked from commit 73cddef)
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While here, also update our main README to point to new docs we've added or updated.