rturrado wrote:
> @rturrado have you been able to investigate the CI crashes?
Hm... weird, `ninja -C build check-lang-codegen-x86` is passing 262 tests for
me locally.
But also weird, and it may be related to those CI issues, I'm still getting 2
build warnings locally:
```
[35/72] Building C
rturrado wrote:
> Still missing handling in ExprConstant.cpp VisitBuiltinCallExpr - we
> currently have 2 expression interpreters to support
Many thanks for the guiding, @RKSimon !
All `constexpr` versions of the `ktest`/`kortest` instructions are recognized.
The only remaining issue is that
https://github.com/rturrado updated
https://github.com/llvm/llvm-project/pull/166103
>From 084f456a91a2bcb921f84a19c367ccd9d5e05700 Mon Sep 17 00:00:00 2001
From: rturrado
Date: Sat, 1 Nov 2025 19:53:19 +0100
Subject: [PATCH 01/12] Mark instructions as _CONSTEXPR
---
clang/lib/Headers/avx512b
rturrado wrote:
> You just need `LLVM_ENABLE_PROJECTS='clang'`
Thanks. I have managed to build and run the same tests as the CI.
Though I have no idea yet why all the `ktest` and `kortest` instructions are
not recognized as constexpr expressions.
https://github.com/llvm/llvm-project/pull/1661
rturrado wrote:
A couple of questions.
1) `clang/lib/Headers/avx512fintrin.h` implements both `_mm512_kortestc(A, B)`
and `_kortestc_mask16_u8(A, B)` in terms of `__builtin_ia32_kortestchi`.
However, `_mm512_kortestc` returns an `int` with the value of `A | B`, while
`_kortestc_mask16_u8` ret
https://github.com/rturrado updated
https://github.com/llvm/llvm-project/pull/166103
>From 084f456a91a2bcb921f84a19c367ccd9d5e05700 Mon Sep 17 00:00:00 2001
From: rturrado
Date: Sat, 1 Nov 2025 19:53:19 +0100
Subject: [PATCH 01/10] Mark instructions as _CONSTEXPR
---
clang/lib/Headers/avx512b
rturrado wrote:
> check-clang-codegen-x86 instead of check-llvm
Hm... it doesn't recognize that `check-clang-codegen-x86`.
https://github.com/llvm/llvm-project/pull/166103
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https://github.com/rturrado updated
https://github.com/llvm/llvm-project/pull/166103
>From 084f456a91a2bcb921f84a19c367ccd9d5e05700 Mon Sep 17 00:00:00 2001
From: rturrado
Date: Sat, 1 Nov 2025 19:53:19 +0100
Subject: [PATCH 1/8] Mark instructions as _CONSTEXPR
---
clang/lib/Headers/avx512bwi
@@ -242,6 +250,16 @@ unsigned char test_kortest_mask32_u8(__m512i __A, __m512i
__B, __m512i __C, __m5
_mm512_cmpneq_epu16_mask(__C, __D), CF);
}
+#if TEST_STD_VER > 17
+TEST_CONSTEXPR bool test_kortest_mask32_u8() {
+ unsigned char all_ones = 0;
+
https://github.com/rturrado edited
https://github.com/llvm/llvm-project/pull/166103
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https://github.com/rturrado deleted
https://github.com/llvm/llvm-project/pull/166103
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rturrado wrote:
I have noticed that some builds have failed, so I wonder if I am missing
something in the way I'm building:
```
cmake -S llvm -B build -G Ninja -DCMAKE_BUILD_TYPE=Release
ninja -C build check-llvm
```
https://github.com/llvm/llvm-project/pull/166103
@@ -242,6 +250,16 @@ unsigned char test_kortest_mask32_u8(__m512i __A, __m512i
__B, __m512i __C, __m5
_mm512_cmpneq_epu16_mask(__C, __D), CF);
}
+#if TEST_STD_VER > 17
+TEST_CONSTEXPR bool test_kortest_mask32_u8() {
+ unsigned char all_ones = 0;
+
@@ -242,6 +250,16 @@ unsigned char test_kortest_mask32_u8(__m512i __A, __m512i
__B, __m512i __C, __m5
_mm512_cmpneq_epu16_mask(__C, __D), CF);
}
+#if TEST_STD_VER > 17
+TEST_CONSTEXPR bool test_kortest_mask32_u8() {
+ unsigned char all_ones = 0;
+
@@ -242,6 +250,16 @@ unsigned char test_kortest_mask32_u8(__m512i __A, __m512i
__B, __m512i __C, __m5
_mm512_cmpneq_epu16_mask(__C, __D), CF);
}
+#if TEST_STD_VER > 17
rturrado wrote:
Thanks! I don't remember exactly where I took
rturrado wrote:
I have left a couple of TODOs on purpose. They are more a question to
reviewers. I didn't know:
1) If I had to check for a carry/zero flag as a result of a kortestc/kortestz
operation, respectively.
2) And if so, how to do it.
https://github.com/llvm/llvm-project/pull/166103
__
https://github.com/rturrado created
https://github.com/llvm/llvm-project/pull/166103
Add AVX512 KTEST/KORTEST intrinsics to be used in constexpr.
>From 084f456a91a2bcb921f84a19c367ccd9d5e05700 Mon Sep 17 00:00:00 2001
From: rturrado
Date: Sat, 1 Nov 2025 19:53:19 +0100
Subject: [PATCH 1/5] Mar
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