https://github.com/ostannard closed
https://github.com/llvm/llvm-project/pull/89062
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nihui wrote:
> LGTM, thanks.
And please merge this fix for me, I have no commit access :)
https://github.com/llvm/llvm-project/pull/89062
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https://github.com/ostannard approved this pull request.
LGTM, thanks.
https://github.com/llvm/llvm-project/pull/89062
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nihui wrote:
@ostannard hi, would you please review my fix :)
https://github.com/llvm/llvm-project/pull/89062
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https://github.com/nihui updated https://github.com/llvm/llvm-project/pull/89062
>From 5b5e8e02205d1308987af17faa72ec54bab1892c Mon Sep 17 00:00:00 2001
From: nihui
Date: Wed, 17 Apr 2024 20:04:00 +0800
Subject: [PATCH 1/2] fix UB in bfloat16 scalar conversion
---
clang/include/clang/Basic/arm
https://github.com/nihui updated https://github.com/llvm/llvm-project/pull/89062
>From 05461899522816d2569fdab73b9eeda525524cc8 Mon Sep 17 00:00:00 2001
From: nihui
Date: Wed, 17 Apr 2024 20:04:00 +0800
Subject: [PATCH 1/2] fix UB in bfloat16 scalar conversion
---
clang/include/clang/Basic/arm
https://github.com/nihui updated https://github.com/llvm/llvm-project/pull/89062
>From 05461899522816d2569fdab73b9eeda525524cc8 Mon Sep 17 00:00:00 2001
From: nihui
Date: Wed, 17 Apr 2024 20:04:00 +0800
Subject: [PATCH] fix UB in bfloat16 scalar conversion
---
clang/include/clang/Basic/arm_neo
https://github.com/nihui updated https://github.com/llvm/llvm-project/pull/89062
>From c9e664be047d980786aa50ac682be529971caedd Mon Sep 17 00:00:00 2001
From: nihui
Date: Wed, 17 Apr 2024 20:04:00 +0800
Subject: [PATCH] fix UB in bfloat16 scalar conversion
---
clang/include/clang/Basic/arm_neo
llvmbot wrote:
@llvm/pr-subscribers-clang
Author: None (nihui)
Changes
do not bitcast 16bit `bfloat16` to 32bit `int32_t` directly
bitcast to `int16_t`, and then upcast to `int32_t`
Fix ASAN runtime error when calling vcvtah_f32_bf16
`==21842==ERROR: AddressSanitizer: stack-buffer-overflo
https://github.com/nihui created https://github.com/llvm/llvm-project/pull/89062
do not bitcast 16bit `bfloat16` to 32bit `int32_t` directly
bitcast to `int16_t`, and then upcast to `int32_t`
Fix ASAN runtime error when calling vcvtah_f32_bf16
`==21842==ERROR: AddressSanitizer: stack-buffer-over
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