Fix wrong gcc inline assembly code. (dotnet/coreclr#10024)

It was coded as "rbx" instead of "ebx" register in clobber list position.

Commit migrated from https://github.com/dotnet/coreclr/commit/a5e4dc79d1c1fcea413522099f7981ac1a7d9625

diff --git a/src/coreclr/src/vm/i386/cgenx86.cpp b/src/coreclr/src/vm/i386/cgenx86.cpp
index 6dd1121..f85eb04 100644 (file)
--- a/src/coreclr/src/vm/i386/cgenx86.cpp
+++ b/src/coreclr/src/vm/i386/cgenx86.cpp
@@ -1462,7 +1462,7 @@ extern "C" DWORD __stdcall getcpuid(DWORD arg, unsigned char result[16])
             "  mov %%edx, 12(%[result])\n" \
         : "=a"(eax) /*output in eax*/\
         : "a"(arg), [result]"r"(result) /*inputs - arg in eax, result in any register*/\
-        : "eax", "rbx", "ecx", "edx", "memory" /* registers that are clobbered, *result is clobbered */
+        : "eax", "ebx", "ecx", "edx", "memory" /* registers that are clobbered, *result is clobbered */
         );
     return eax;
 }
@@ -1477,7 +1477,7 @@ extern "C" DWORD __stdcall getextcpuid(DWORD arg1, DWORD arg2, unsigned char res
             "  mov %%edx, 12(%[result])\n" \
         : "=a"(eax) /*output in eax*/\
         : "c"(arg1), "a"(arg2), [result]"r"(result) /*inputs - arg1 in ecx, arg2 in eax, result in any register*/\
-        : "eax", "rbx", "ecx", "edx", "memory" /* registers that are clobbered, *result is clobbered */
+        : "eax", "ebx", "ecx", "edx", "memory" /* registers that are clobbered, *result is clobbered */
         );
     return eax;
 }