zvi created this revision.
The _bit_scan_forward and _bit_scan_reverse intrinsics were accidentally
masked under the preprocessor checks that prune intrinsics definitions for the
benefit of faster compile-time on Windows. This patch moves the
definitons out of that region.
Fixes pr33722
https://reviews.llvm.org/D35184
Files:
lib/Headers/immintrin.h
test/CodeGen/bitscan-builtins.c
Index: test/CodeGen/bitscan-builtins.c
===================================================================
--- test/CodeGen/bitscan-builtins.c
+++ test/CodeGen/bitscan-builtins.c
@@ -1,5 +1,8 @@
// RUN: %clang_cc1 -ffreestanding -triple x86_64-unknown-unknown -emit-llvm -o
- %s | FileCheck %s
+// PR33722
+// RUN: %clang_cc1 -ffreestanding -triple x86_64-unknown-unknown -D_MSC_VER
-emit-llvm -o - %s | FileCheck %s
+
#include <immintrin.h>
int test_bit_scan_forward(int a) {
Index: lib/Headers/immintrin.h
===================================================================
--- lib/Headers/immintrin.h
+++ lib/Headers/immintrin.h
@@ -211,6 +211,7 @@
{
return __builtin_ia32_rdrand32_step(__p);
}
+#endif /* __RDRND__ */
/* __bit_scan_forward */
static __inline__ int __attribute__((__always_inline__, __nodebug__))
@@ -231,7 +232,6 @@
return __builtin_ia32_rdrand64_step(__p);
}
#endif
-#endif /* __RDRND__ */
#if !defined(_MSC_VER) || __has_feature(modules) || defined(__FSGSBASE__)
#ifdef __x86_64__
Index: test/CodeGen/bitscan-builtins.c
===================================================================
--- test/CodeGen/bitscan-builtins.c
+++ test/CodeGen/bitscan-builtins.c
@@ -1,5 +1,8 @@
// RUN: %clang_cc1 -ffreestanding -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
+// PR33722
+// RUN: %clang_cc1 -ffreestanding -triple x86_64-unknown-unknown -D_MSC_VER -emit-llvm -o - %s | FileCheck %s
+
#include <immintrin.h>
int test_bit_scan_forward(int a) {
Index: lib/Headers/immintrin.h
===================================================================
--- lib/Headers/immintrin.h
+++ lib/Headers/immintrin.h
@@ -211,6 +211,7 @@
{
return __builtin_ia32_rdrand32_step(__p);
}
+#endif /* __RDRND__ */
/* __bit_scan_forward */
static __inline__ int __attribute__((__always_inline__, __nodebug__))
@@ -231,7 +232,6 @@
return __builtin_ia32_rdrand64_step(__p);
}
#endif
-#endif /* __RDRND__ */
#if !defined(_MSC_VER) || __has_feature(modules) || defined(__FSGSBASE__)
#ifdef __x86_64__
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