[libc-commits] [libc] [libc] add more stdbit.h entrypoints to additional targets (PR #82440)

[Nick Desaulniers via libc-commits]

https://github.com/nickdesaulniers created https://github.com/llvm/llvm-project/pull/82440

stdbit.h isn't complete yet, but looking to turn these on on more targets for
earlier feedback.


>From de4d808b5e5b4259ee4ad51954a8e4f7e022ddb0 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers at google.com>
Date: Tue, 20 Feb 2024 15:33:19 -0800
Subject: [PATCH] [libc] add more stdbit.h entrypoints to additional targets

stdbit.h isn't complete yet, but looking to turn these on on more targets for
earlier feedback.
---
 libc/config/baremetal/arm/entrypoints.txt   | 43 +++++++++++++++++++++
 libc/config/baremetal/riscv/entrypoints.txt | 42 ++++++++++++++++++++
 libc/config/gpu/entrypoints.txt             | 42 ++++++++++++++++++++
 libc/config/linux/aarch64/entrypoints.txt   | 35 +++++++++++++++++
 libc/config/linux/arm/entrypoints.txt       | 35 +++++++++++++++++
 libc/config/linux/riscv/entrypoints.txt     | 35 +++++++++++++++++
 6 files changed, 232 insertions(+)

diff --git a/libc/config/baremetal/arm/entrypoints.txt b/libc/config/baremetal/arm/entrypoints.txt
index f725b1c2394c6a..608ac46034306b 100644
--- a/libc/config/baremetal/arm/entrypoints.txt
+++ b/libc/config/baremetal/arm/entrypoints.txt
@@ -73,6 +73,49 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdio.vsprintf
     libc.src.stdio.vsnprintf
 
+
+    # stdbit.h entrypoints
+    libc.src.stdbit.stdc_leading_zeros_uc
+    libc.src.stdbit.stdc_leading_zeros_us
+    libc.src.stdbit.stdc_leading_zeros_ui
+    libc.src.stdbit.stdc_leading_zeros_ul
+    libc.src.stdbit.stdc_leading_zeros_ull
+    libc.src.stdbit.stdc_leading_ones_uc
+    libc.src.stdbit.stdc_leading_ones_us
+    libc.src.stdbit.stdc_leading_ones_ui
+    libc.src.stdbit.stdc_leading_ones_ul
+    libc.src.stdbit.stdc_leading_ones_ull
+    libc.src.stdbit.stdc_trailing_zeros_uc
+    libc.src.stdbit.stdc_trailing_zeros_us
+    libc.src.stdbit.stdc_trailing_zeros_ui
+    libc.src.stdbit.stdc_trailing_zeros_ul
+    libc.src.stdbit.stdc_trailing_zeros_ull
+    libc.src.stdbit.stdc_trailing_ones_uc
+    libc.src.stdbit.stdc_trailing_ones_us
+    libc.src.stdbit.stdc_trailing_ones_ui
+    libc.src.stdbit.stdc_trailing_ones_ul
+    libc.src.stdbit.stdc_trailing_ones_ull
+    libc.src.stdbit.stdc_first_leading_zero_uc
+    libc.src.stdbit.stdc_first_leading_zero_us
+    libc.src.stdbit.stdc_first_leading_zero_ui
+    libc.src.stdbit.stdc_first_leading_zero_ul
+    libc.src.stdbit.stdc_first_leading_zero_ull
+    libc.src.stdbit.stdc_first_leading_one_uc
+    libc.src.stdbit.stdc_first_leading_one_us
+    libc.src.stdbit.stdc_first_leading_one_ui
+    libc.src.stdbit.stdc_first_leading_one_ul
+    libc.src.stdbit.stdc_first_leading_one_ull
+    libc.src.stdbit.stdc_first_trailing_zero_uc
+    libc.src.stdbit.stdc_first_trailing_zero_us
+    libc.src.stdbit.stdc_first_trailing_zero_ui
+    libc.src.stdbit.stdc_first_trailing_zero_ul
+    libc.src.stdbit.stdc_first_trailing_zero_ull
+    libc.src.stdbit.stdc_first_trailing_one_uc
+    libc.src.stdbit.stdc_first_trailing_one_us
+    libc.src.stdbit.stdc_first_trailing_one_ui
+    libc.src.stdbit.stdc_first_trailing_one_ul
+    libc.src.stdbit.stdc_first_trailing_one_ull
+
     # stdlib.h entrypoints
     libc.src.stdlib.abort
     libc.src.stdlib.abs
diff --git a/libc/config/baremetal/riscv/entrypoints.txt b/libc/config/baremetal/riscv/entrypoints.txt
index f725b1c2394c6a..2f299e992be09a 100644
--- a/libc/config/baremetal/riscv/entrypoints.txt
+++ b/libc/config/baremetal/riscv/entrypoints.txt
@@ -73,6 +73,48 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdio.vsprintf
     libc.src.stdio.vsnprintf
 
+    # stdbit.h entrypoints
+    libc.src.stdbit.stdc_leading_zeros_uc
+    libc.src.stdbit.stdc_leading_zeros_us
+    libc.src.stdbit.stdc_leading_zeros_ui
+    libc.src.stdbit.stdc_leading_zeros_ul
+    libc.src.stdbit.stdc_leading_zeros_ull
+    libc.src.stdbit.stdc_leading_ones_uc
+    libc.src.stdbit.stdc_leading_ones_us
+    libc.src.stdbit.stdc_leading_ones_ui
+    libc.src.stdbit.stdc_leading_ones_ul
+    libc.src.stdbit.stdc_leading_ones_ull
+    libc.src.stdbit.stdc_trailing_zeros_uc
+    libc.src.stdbit.stdc_trailing_zeros_us
+    libc.src.stdbit.stdc_trailing_zeros_ui
+    libc.src.stdbit.stdc_trailing_zeros_ul
+    libc.src.stdbit.stdc_trailing_zeros_ull
+    libc.src.stdbit.stdc_trailing_ones_uc
+    libc.src.stdbit.stdc_trailing_ones_us
+    libc.src.stdbit.stdc_trailing_ones_ui
+    libc.src.stdbit.stdc_trailing_ones_ul
+    libc.src.stdbit.stdc_trailing_ones_ull
+    libc.src.stdbit.stdc_first_leading_zero_uc
+    libc.src.stdbit.stdc_first_leading_zero_us
+    libc.src.stdbit.stdc_first_leading_zero_ui
+    libc.src.stdbit.stdc_first_leading_zero_ul
+    libc.src.stdbit.stdc_first_leading_zero_ull
+    libc.src.stdbit.stdc_first_leading_one_uc
+    libc.src.stdbit.stdc_first_leading_one_us
+    libc.src.stdbit.stdc_first_leading_one_ui
+    libc.src.stdbit.stdc_first_leading_one_ul
+    libc.src.stdbit.stdc_first_leading_one_ull
+    libc.src.stdbit.stdc_first_trailing_zero_uc
+    libc.src.stdbit.stdc_first_trailing_zero_us
+    libc.src.stdbit.stdc_first_trailing_zero_ui
+    libc.src.stdbit.stdc_first_trailing_zero_ul
+    libc.src.stdbit.stdc_first_trailing_zero_ull
+    libc.src.stdbit.stdc_first_trailing_one_uc
+    libc.src.stdbit.stdc_first_trailing_one_us
+    libc.src.stdbit.stdc_first_trailing_one_ui
+    libc.src.stdbit.stdc_first_trailing_one_ul
+    libc.src.stdbit.stdc_first_trailing_one_ull
+
     # stdlib.h entrypoints
     libc.src.stdlib.abort
     libc.src.stdlib.abs
diff --git a/libc/config/gpu/entrypoints.txt b/libc/config/gpu/entrypoints.txt
index b333c6be144627..5224e92bbcc589 100644
--- a/libc/config/gpu/entrypoints.txt
+++ b/libc/config/gpu/entrypoints.txt
@@ -65,6 +65,48 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.string.strtok_r
     libc.src.string.strxfrm
 
+    # stdbit.h entrypoints
+    libc.src.stdbit.stdc_leading_zeros_uc
+    libc.src.stdbit.stdc_leading_zeros_us
+    libc.src.stdbit.stdc_leading_zeros_ui
+    libc.src.stdbit.stdc_leading_zeros_ul
+    libc.src.stdbit.stdc_leading_zeros_ull
+    libc.src.stdbit.stdc_leading_ones_uc
+    libc.src.stdbit.stdc_leading_ones_us
+    libc.src.stdbit.stdc_leading_ones_ui
+    libc.src.stdbit.stdc_leading_ones_ul
+    libc.src.stdbit.stdc_leading_ones_ull
+    libc.src.stdbit.stdc_trailing_zeros_uc
+    libc.src.stdbit.stdc_trailing_zeros_us
+    libc.src.stdbit.stdc_trailing_zeros_ui
+    libc.src.stdbit.stdc_trailing_zeros_ul
+    libc.src.stdbit.stdc_trailing_zeros_ull
+    libc.src.stdbit.stdc_trailing_ones_uc
+    libc.src.stdbit.stdc_trailing_ones_us
+    libc.src.stdbit.stdc_trailing_ones_ui
+    libc.src.stdbit.stdc_trailing_ones_ul
+    libc.src.stdbit.stdc_trailing_ones_ull
+    libc.src.stdbit.stdc_first_leading_zero_uc
+    libc.src.stdbit.stdc_first_leading_zero_us
+    libc.src.stdbit.stdc_first_leading_zero_ui
+    libc.src.stdbit.stdc_first_leading_zero_ul
+    libc.src.stdbit.stdc_first_leading_zero_ull
+    libc.src.stdbit.stdc_first_leading_one_uc
+    libc.src.stdbit.stdc_first_leading_one_us
+    libc.src.stdbit.stdc_first_leading_one_ui
+    libc.src.stdbit.stdc_first_leading_one_ul
+    libc.src.stdbit.stdc_first_leading_one_ull
+    libc.src.stdbit.stdc_first_trailing_zero_uc
+    libc.src.stdbit.stdc_first_trailing_zero_us
+    libc.src.stdbit.stdc_first_trailing_zero_ui
+    libc.src.stdbit.stdc_first_trailing_zero_ul
+    libc.src.stdbit.stdc_first_trailing_zero_ull
+    libc.src.stdbit.stdc_first_trailing_one_uc
+    libc.src.stdbit.stdc_first_trailing_one_us
+    libc.src.stdbit.stdc_first_trailing_one_ui
+    libc.src.stdbit.stdc_first_trailing_one_ul
+    libc.src.stdbit.stdc_first_trailing_one_ull
+
     # stdlib.h entrypoints
     libc.src.stdlib.abs
     libc.src.stdlib.atoi
diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 6e194682df4bfc..8a6c160c099322 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -95,6 +95,41 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdbit.stdc_leading_zeros_ui
     libc.src.stdbit.stdc_leading_zeros_ul
     libc.src.stdbit.stdc_leading_zeros_ull
+    libc.src.stdbit.stdc_leading_ones_uc
+    libc.src.stdbit.stdc_leading_ones_us
+    libc.src.stdbit.stdc_leading_ones_ui
+    libc.src.stdbit.stdc_leading_ones_ul
+    libc.src.stdbit.stdc_leading_ones_ull
+    libc.src.stdbit.stdc_trailing_zeros_uc
+    libc.src.stdbit.stdc_trailing_zeros_us
+    libc.src.stdbit.stdc_trailing_zeros_ui
+    libc.src.stdbit.stdc_trailing_zeros_ul
+    libc.src.stdbit.stdc_trailing_zeros_ull
+    libc.src.stdbit.stdc_trailing_ones_uc
+    libc.src.stdbit.stdc_trailing_ones_us
+    libc.src.stdbit.stdc_trailing_ones_ui
+    libc.src.stdbit.stdc_trailing_ones_ul
+    libc.src.stdbit.stdc_trailing_ones_ull
+    libc.src.stdbit.stdc_first_leading_zero_uc
+    libc.src.stdbit.stdc_first_leading_zero_us
+    libc.src.stdbit.stdc_first_leading_zero_ui
+    libc.src.stdbit.stdc_first_leading_zero_ul
+    libc.src.stdbit.stdc_first_leading_zero_ull
+    libc.src.stdbit.stdc_first_leading_one_uc
+    libc.src.stdbit.stdc_first_leading_one_us
+    libc.src.stdbit.stdc_first_leading_one_ui
+    libc.src.stdbit.stdc_first_leading_one_ul
+    libc.src.stdbit.stdc_first_leading_one_ull
+    libc.src.stdbit.stdc_first_trailing_zero_uc
+    libc.src.stdbit.stdc_first_trailing_zero_us
+    libc.src.stdbit.stdc_first_trailing_zero_ui
+    libc.src.stdbit.stdc_first_trailing_zero_ul
+    libc.src.stdbit.stdc_first_trailing_zero_ull
+    libc.src.stdbit.stdc_first_trailing_one_uc
+    libc.src.stdbit.stdc_first_trailing_one_us
+    libc.src.stdbit.stdc_first_trailing_one_ui
+    libc.src.stdbit.stdc_first_trailing_one_ul
+    libc.src.stdbit.stdc_first_trailing_one_ull
 
     # stdlib.h entrypoints
     libc.src.stdlib.abs
diff --git a/libc/config/linux/arm/entrypoints.txt b/libc/config/linux/arm/entrypoints.txt
index 9bacfab7b0e5ae..7df19049088867 100644
--- a/libc/config/linux/arm/entrypoints.txt
+++ b/libc/config/linux/arm/entrypoints.txt
@@ -73,6 +73,41 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdbit.stdc_leading_zeros_ui
     libc.src.stdbit.stdc_leading_zeros_ul
     libc.src.stdbit.stdc_leading_zeros_ull
+    libc.src.stdbit.stdc_leading_ones_uc
+    libc.src.stdbit.stdc_leading_ones_us
+    libc.src.stdbit.stdc_leading_ones_ui
+    libc.src.stdbit.stdc_leading_ones_ul
+    libc.src.stdbit.stdc_leading_ones_ull
+    libc.src.stdbit.stdc_trailing_zeros_uc
+    libc.src.stdbit.stdc_trailing_zeros_us
+    libc.src.stdbit.stdc_trailing_zeros_ui
+    libc.src.stdbit.stdc_trailing_zeros_ul
+    libc.src.stdbit.stdc_trailing_zeros_ull
+    libc.src.stdbit.stdc_trailing_ones_uc
+    libc.src.stdbit.stdc_trailing_ones_us
+    libc.src.stdbit.stdc_trailing_ones_ui
+    libc.src.stdbit.stdc_trailing_ones_ul
+    libc.src.stdbit.stdc_trailing_ones_ull
+    libc.src.stdbit.stdc_first_leading_zero_uc
+    libc.src.stdbit.stdc_first_leading_zero_us
+    libc.src.stdbit.stdc_first_leading_zero_ui
+    libc.src.stdbit.stdc_first_leading_zero_ul
+    libc.src.stdbit.stdc_first_leading_zero_ull
+    libc.src.stdbit.stdc_first_leading_one_uc
+    libc.src.stdbit.stdc_first_leading_one_us
+    libc.src.stdbit.stdc_first_leading_one_ui
+    libc.src.stdbit.stdc_first_leading_one_ul
+    libc.src.stdbit.stdc_first_leading_one_ull
+    libc.src.stdbit.stdc_first_trailing_zero_uc
+    libc.src.stdbit.stdc_first_trailing_zero_us
+    libc.src.stdbit.stdc_first_trailing_zero_ui
+    libc.src.stdbit.stdc_first_trailing_zero_ul
+    libc.src.stdbit.stdc_first_trailing_zero_ull
+    libc.src.stdbit.stdc_first_trailing_one_uc
+    libc.src.stdbit.stdc_first_trailing_one_us
+    libc.src.stdbit.stdc_first_trailing_one_ui
+    libc.src.stdbit.stdc_first_trailing_one_ul
+    libc.src.stdbit.stdc_first_trailing_one_ull
 
     # stdlib.h entrypoints
     libc.src.stdlib.abs
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index 71ff4bcfc35195..5c8cc7618a9e8c 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -97,6 +97,41 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.stdbit.stdc_leading_zeros_ui
     libc.src.stdbit.stdc_leading_zeros_ul
     libc.src.stdbit.stdc_leading_zeros_ull
+    libc.src.stdbit.stdc_leading_ones_uc
+    libc.src.stdbit.stdc_leading_ones_us
+    libc.src.stdbit.stdc_leading_ones_ui
+    libc.src.stdbit.stdc_leading_ones_ul
+    libc.src.stdbit.stdc_leading_ones_ull
+    libc.src.stdbit.stdc_trailing_zeros_uc
+    libc.src.stdbit.stdc_trailing_zeros_us
+    libc.src.stdbit.stdc_trailing_zeros_ui
+    libc.src.stdbit.stdc_trailing_zeros_ul
+    libc.src.stdbit.stdc_trailing_zeros_ull
+    libc.src.stdbit.stdc_trailing_ones_uc
+    libc.src.stdbit.stdc_trailing_ones_us
+    libc.src.stdbit.stdc_trailing_ones_ui
+    libc.src.stdbit.stdc_trailing_ones_ul
+    libc.src.stdbit.stdc_trailing_ones_ull
+    libc.src.stdbit.stdc_first_leading_zero_uc
+    libc.src.stdbit.stdc_first_leading_zero_us
+    libc.src.stdbit.stdc_first_leading_zero_ui
+    libc.src.stdbit.stdc_first_leading_zero_ul
+    libc.src.stdbit.stdc_first_leading_zero_ull
+    libc.src.stdbit.stdc_first_leading_one_uc
+    libc.src.stdbit.stdc_first_leading_one_us
+    libc.src.stdbit.stdc_first_leading_one_ui
+    libc.src.stdbit.stdc_first_leading_one_ul
+    libc.src.stdbit.stdc_first_leading_one_ull
+    libc.src.stdbit.stdc_first_trailing_zero_uc
+    libc.src.stdbit.stdc_first_trailing_zero_us
+    libc.src.stdbit.stdc_first_trailing_zero_ui
+    libc.src.stdbit.stdc_first_trailing_zero_ul
+    libc.src.stdbit.stdc_first_trailing_zero_ull
+    libc.src.stdbit.stdc_first_trailing_one_uc
+    libc.src.stdbit.stdc_first_trailing_one_us
+    libc.src.stdbit.stdc_first_trailing_one_ui
+    libc.src.stdbit.stdc_first_trailing_one_ul
+    libc.src.stdbit.stdc_first_trailing_one_ull
 
     # stdlib.h entrypoints
     libc.src.stdlib.abs