[libc] Add the missing math_extras.h include

[petrhosek]

math_extras.h is used in integer_utils.h when building for 32-bit platforms but the include is missing.

[llvmbot]

@llvm/pr-subscribers-libc

Author: Petr Hosek (petrhosek)

Changes

math_extras.h is used in integer_utils.h when building for 32-bit platforms but the include is missing.

---

Full diff: https://github.com/llvm/llvm-project/pull/74259.diff

2 Files Affected:

• (modified) libc/src/__support/CMakeLists.txt (+1)
• (modified) libc/src/__support/integer_utils.h (+4)

diff --git a/libc/src/__support/CMakeLists.txt b/libc/src/__support/CMakeLists.txt
index ba80965b5aaaf..d6dbad661cb73 100644
--- a/libc/src/__support/CMakeLists.txt
+++ b/libc/src/__support/CMakeLists.txt
@@ -189,6 +189,7 @@ add_header_library(
     integer_utils.h
   DEPENDS
     .bit
+    .math_extras
     .number_pair
     libc.src.__support.common
     libc.src.__support.CPP.type_traits
diff --git a/libc/src/__support/integer_utils.h b/libc/src/__support/integer_utils.h
index 433e99227bcfd..619e13f51c411 100644
--- a/libc/src/__support/integer_utils.h
+++ b/libc/src/__support/integer_utils.h
@@ -15,6 +15,10 @@
 #include "bit.h"
 #include "number_pair.h"
 
+#ifndef __SIZEOF_INT128__
+#include "math_extras.h"
+#endif
+
 #include <stdint.h>
 
 namespace LIBC_NAMESPACE {

[michaelrj-google]

LGTM with one minor change

[michaelrj-google]

this include should be unconditional since the function is always used.

[petrhosek]

Done