[llvm-bugs] [Bug 30352] New: ARM Cortex ASM Statement not understood

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30352

            Bug ID: 30352
           Summary: ARM Cortex ASM Statement not understood
           Product: clang
           Version: 3.9
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: dan at walms.co.uk
                CC: llvm-bugs at lists.llvm.org
    Classification: Unclassified

ldr.w r0, =0xE000ED88  

worked on 3.8.1

but now gives

FreeRTOS\Source\portable\GCC\ARM_CM4F\port.c:687:3: error: invalid operand for
instruction
                "       ldr.w r0, =0xE000ED88           \n" /* The FPU enable
bits are in the CPACR. */
                ^
<inline asm>:1:13: note: instantiated into assembly here
                ldr.w r0, =0xE000ED88           
                          ^
1 error generated.



My actual source:

static void vPortEnableVFP( void )
{
    __asm volatile
    (
        "    ldr.w r0, =0xE000ED88        \n" /* The FPU enable bits are in the
CPACR. */
        "    ldr r1, [r0]                \n"
        "                                \n"
        "    orr r1, r1, #( 0xf << 20 )    \n" /* Enable CP10 and CP11
coprocessors, then save back. */
        "    str r1, [r0]                \n"
        "    bx r14                        "
    );
}

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20160912/08ba15ee/attachment-0001.html>