[libc-commits] [libc] [libc] add more arch entrypoints for stdc_leading_zeros (PR #79923)

[Nick Desaulniers via libc-commits]

https://github.com/nickdesaulniers updated https://github.com/llvm/llvm-project/pull/79923

>From 002b720b3ab26cd33a6328589a9407b074b3251b Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers at google.com>
Date: Mon, 29 Jan 2024 16:52:45 -0800
Subject: [PATCH 1/2] [libc] add more arch entrypoints for stdc_leading_zeros

Otherwise the include test fails on these targets.
---
 libc/config/linux/aarch64/entrypoints.txt | 7 +++++++
 libc/config/linux/arm/entrypoints.txt     | 7 +++++++
 libc/config/linux/riscv/entrypoints.txt   | 7 +++++++
 3 files changed, 21 insertions(+)

diff --git a/libc/config/linux/aarch64/entrypoints.txt b/libc/config/linux/aarch64/entrypoints.txt
index 52f1d2bce34f4c..3e034ac4982617 100644
--- a/libc/config/linux/aarch64/entrypoints.txt
+++ b/libc/config/linux/aarch64/entrypoints.txt
@@ -89,6 +89,13 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.inttypes.strtoimax
     libc.src.inttypes.strtoumax
 
+    # 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
+
     # stdlib.h entrypoints
     libc.src.stdlib.abs
     libc.src.stdlib.atoi
diff --git a/libc/config/linux/arm/entrypoints.txt b/libc/config/linux/arm/entrypoints.txt
index c75ac2302d4ac4..73c2b61e6c918d 100644
--- a/libc/config/linux/arm/entrypoints.txt
+++ b/libc/config/linux/arm/entrypoints.txt
@@ -67,6 +67,13 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.inttypes.strtoimax
     libc.src.inttypes.strtoumax
 
+    # 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
+
     # stdlib.h entrypoints
     libc.src.stdlib.abs
     libc.src.stdlib.atoi
diff --git a/libc/config/linux/riscv/entrypoints.txt b/libc/config/linux/riscv/entrypoints.txt
index a257f3f8d64ab9..8ae7ca0a04bff6 100644
--- a/libc/config/linux/riscv/entrypoints.txt
+++ b/libc/config/linux/riscv/entrypoints.txt
@@ -91,6 +91,13 @@ set(TARGET_LIBC_ENTRYPOINTS
     libc.src.inttypes.strtoimax
     libc.src.inttypes.strtoumax
 
+    # 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
+
     # stdlib.h entrypoints
     libc.src.stdlib.abs
     libc.src.stdlib.atoi

>From 3e22e4a0499eaf1ab1e84ad627d4d27e7fce4e74 Mon Sep 17 00:00:00 2001
From: Nick Desaulniers <ndesaulniers at google.com>
Date: Mon, 29 Jan 2024 16:54:50 -0800
Subject: [PATCH 2/2] add headers

---
 libc/config/linux/aarch64/headers.txt | 1 +
 libc/config/linux/arm/headers.txt     | 1 +
 libc/config/linux/riscv/headers.txt   | 1 +
 3 files changed, 3 insertions(+)

diff --git a/libc/config/linux/aarch64/headers.txt b/libc/config/linux/aarch64/headers.txt
index 60d978bcaa76e4..e55d24a677adff 100644
--- a/libc/config/linux/aarch64/headers.txt
+++ b/libc/config/linux/aarch64/headers.txt
@@ -10,6 +10,7 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.math
     libc.include.pthread
     libc.include.signal
+    libc.include.stdbit
     libc.include.stdio
     libc.include.stdlib
     libc.include.string
diff --git a/libc/config/linux/arm/headers.txt b/libc/config/linux/arm/headers.txt
index 9e6ee51675916e..f3824adc0ef95f 100644
--- a/libc/config/linux/arm/headers.txt
+++ b/libc/config/linux/arm/headers.txt
@@ -5,6 +5,7 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.float
     libc.include.inttypes
     libc.include.math
+    libc.include.stdbit
     libc.include.stdlib
     libc.include.string
     libc.include.strings
diff --git a/libc/config/linux/riscv/headers.txt b/libc/config/linux/riscv/headers.txt
index 0ade63dc5933b5..f301eb4750cf8f 100644
--- a/libc/config/linux/riscv/headers.txt
+++ b/libc/config/linux/riscv/headers.txt
@@ -15,6 +15,7 @@ set(TARGET_PUBLIC_HEADERS
     libc.include.signal
     libc.include.spawn
     libc.include.setjmp
+    libc.include.stdbit
     libc.include.stdio
     libc.include.stdlib
     libc.include.string