[PATCH v2] x86: Define __APX_INLINE_ASM_USE_GPR32__

[H.J. Lu]

Define __APX_INLINE_ASM_USE_GPR32__ for -mapx-inline-asm-use-gpr32.
When __APX_INLINE_ASM_USE_GPR32__ is defined, inline asm statements
should contain only instructions compatible with r16-r31.

gcc/

        PR target/114587
        * config/i386/i386-c.cc (ix86_target_macros_internal): Define
        __APX_INLINE_ASM_USE_GPR32__ for -mapx-inline-asm-use-gpr32.

gcc/testsuite/

        PR target/114587
        * gcc.target/i386/apx-3.c: Likewise.
---
 gcc/config/i386/i386-c.cc             | 2 ++
 gcc/testsuite/gcc.target/i386/apx-3.c | 6 ++++++
 2 files changed, 8 insertions(+)
 create mode 100644 gcc/testsuite/gcc.target/i386/apx-3.c

diff --git a/gcc/config/i386/i386-c.cc b/gcc/config/i386/i386-c.cc
index 226d277676c..07f4936ba91 100644
--- a/gcc/config/i386/i386-c.cc
+++ b/gcc/config/i386/i386-c.cc
@@ -751,6 +751,8 @@ ix86_target_macros_internal (HOST_WIDE_INT isa_flag,
     def_or_undef (parse_in, "__AVX10_1_512__");
   if (isa_flag2 & OPTION_MASK_ISA2_APX_F)
     def_or_undef (parse_in, "__APX_F__");
+  if (ix86_apx_inline_asm_use_gpr32)
+    def_or_undef (parse_in, "__APX_INLINE_ASM_USE_GPR32__");
   if (TARGET_IAMCU)
     {
       def_or_undef (parse_in, "__iamcu");
diff --git a/gcc/testsuite/gcc.target/i386/apx-3.c 
b/gcc/testsuite/gcc.target/i386/apx-3.c
new file mode 100644
index 00000000000..1ba4ac036fc
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/apx-3.c
@@ -0,0 +1,6 @@
+/* { dg-do compile { target { ! ia32 } } } */
+/* { dg-options "-mapx-inline-asm-use-gpr32" } */
+
+#ifndef __APX_INLINE_ASM_USE_GPR32__
+# error __APX_INLINE_ASM_USE_GPR32__ not defined
+#endif
-- 
2.44.0