https://llvm.org/bugs/show_bug.cgi?id=31358
Bug ID: 31358
Summary: Clang should support -march=armv7ve for gcc
compatibility
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: unassignedclangb...@nondot.org
Reporter: manojgu...@google.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
gcc supports -march=armv7ve option for arm but this is not supported by clang.
Armv7ve description:
armv7ve add supports for ARMv7 virtualization extension, including instructions
such as integer divide instructions.
This makes build scripts difficult to port to clang from gcc.
Example:
$ cat foo.c
int divide(int b, int c) {
return b/c;
}
$ gcc -march=armv7ve -c foo.c # This works as expected
Compiling with clang fails.
$ clang -march=armv7ve -c foo.cc
clang-4.0: error: the clang compiler does not support '-march=armv7ve'
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