[llvm-bugs] [Bug 26409] New: __attribute__ ((interrupt)) uses xmm31 with -march=nehalem

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=26409

            Bug ID: 26409
           Summary: __attribute__ ((interrupt)) uses xmm31 with
                    -march=nehalem
           Product: new-bugs
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: hjl.tools at gmail.com
                CC: kevin.b.smith at intel.com, llvm-bugs at lists.llvm.org
    Classification: Unclassified

hjl at gnu-6 interrupt-8]$ cat x.i
extern void subroutine1(void);

__attribute__ ((interrupt))
void ih(void * frame)
{
  subroutine1();
}
[hjl at gnu-6 interrupt-8]$ make
/export/build/gnu/llvm-clang-bootstrap/stage1/build-x86_64-linux/bin/clang -O2
-Wall -march=nehalem -S -o x.s x.i
grep xmm x.s
    movaps    %xmm31, 368(%rsp)       # 16-byte Spill
    movaps    %xmm30, 352(%rsp)       # 16-byte Spill
    movaps    %xmm29, 336(%rsp)       # 16-byte Spill
    movaps    %xmm28, 320(%rsp)       # 16-byte Spill
    movaps    %xmm27, 304(%rsp)       # 16-byte Spill
    movaps    %xmm26, 288(%rsp)       # 16-byte Spill
    movaps    %xmm25, 272(%rsp)       # 16-byte Spill
    movaps    %xmm24, 256(%rsp)       # 16-byte Spill
    movaps    %xmm23, 240(%rsp)       # 16-byte Spill
    movaps    %xmm22, 224(%rsp)       # 16-byte Spill
    movaps    %xmm21, 208(%rsp)       # 16-byte Spill
    movaps    %xmm20, 192(%rsp)       # 16-byte Spill
    movaps    %xmm19, 176(%rsp)       # 16-byte Spill
    movaps    %xmm18, 160(%rsp)       # 16-byte Spill
    movaps    %xmm17, 144(%rsp)       # 16-byte Spill
    movaps    %xmm16, 128(%rsp)       # 16-byte Spill
    movaps    %xmm15, 112(%rsp)       # 16-byte Spill
    movaps    %xmm14, 96(%rsp)        # 16-byte Spill
    movaps    %xmm13, 80(%rsp)        # 16-byte Spill
    movaps    %xmm12, 64(%rsp)        # 16-byte Spill
    movaps    %xmm11, 48(%rsp)        # 16-byte Spill
    movaps    %xmm10, 32(%rsp)        # 16-byte Spill
    movaps    %xmm9, 16(%rsp)         # 16-byte Spill
    movaps    %xmm8, (%rsp)           # 16-byte Spill
    movaps    %xmm7, -16(%rsp)        # 16-byte Spill
    movaps    %xmm6, -32(%rsp)        # 16-byte Spill
    movaps    %xmm5, -48(%rsp)        # 16-byte Spill
    movaps    %xmm4, -64(%rsp)        # 16-byte Spill
    movaps    %xmm3, -80(%rsp)        # 16-byte Spill
    movaps    %xmm2, -96(%rsp)        # 16-byte Spill
    movaps    %xmm1, -112(%rsp)       # 16-byte Spill
    movaps    %xmm0, -128(%rsp)       # 16-byte Spill
    .cfi_offset %xmm0, -608
    .cfi_offset %xmm1, -592
    .cfi_offset %xmm2, -576
    .cfi_offset %xmm3, -560
    .cfi_offset %xmm4, -544
    .cfi_offset %xmm5, -528
    .cfi_offset %xmm6, -512
    .cfi_offset %xmm7, -496
    .cfi_offset %xmm8, -480
    .cfi_offset %xmm9, -464
    .cfi_offset %xmm10, -448
    .cfi_offset %xmm11, -432
    .cfi_offset %xmm12, -416
    .cfi_offset %xmm13, -400
    .cfi_offset %xmm14, -384
    .cfi_offset %xmm15, -368
    .cfi_offset %xmm16, -352
    .cfi_offset %xmm17, -336
    .cfi_offset %xmm18, -320
    .cfi_offset %xmm19, -304
    .cfi_offset %xmm20, -288
    .cfi_offset %xmm21, -272
    .cfi_offset %xmm22, -256
    .cfi_offset %xmm23, -240
    .cfi_offset %xmm24, -224
    .cfi_offset %xmm25, -208
    .cfi_offset %xmm26, -192
    .cfi_offset %xmm27, -176
    .cfi_offset %xmm28, -160
    .cfi_offset %xmm29, -144
    .cfi_offset %xmm30, -128
    .cfi_offset %xmm31, -112
    movaps    -128(%rsp), %xmm0       # 16-byte Reload
    movaps    -112(%rsp), %xmm1       # 16-byte Reload
    movaps    -96(%rsp), %xmm2        # 16-byte Reload
    movaps    -80(%rsp), %xmm3        # 16-byte Reload
    movaps    -64(%rsp), %xmm4        # 16-byte Reload
    movaps    -48(%rsp), %xmm5        # 16-byte Reload
    movaps    -32(%rsp), %xmm6        # 16-byte Reload
    movaps    -16(%rsp), %xmm7        # 16-byte Reload
    movaps    (%rsp), %xmm8           # 16-byte Reload
    movaps    16(%rsp), %xmm9         # 16-byte Reload
    movaps    32(%rsp), %xmm10        # 16-byte Reload
    movaps    48(%rsp), %xmm11        # 16-byte Reload
    movaps    64(%rsp), %xmm12        # 16-byte Reload
    movaps    80(%rsp), %xmm13        # 16-byte Reload
    movaps    96(%rsp), %xmm14        # 16-byte Reload
    movaps    112(%rsp), %xmm15       # 16-byte Reload
    movaps    128(%rsp), %xmm16       # 16-byte Reload
    movaps    144(%rsp), %xmm17       # 16-byte Reload
    movaps    160(%rsp), %xmm18       # 16-byte Reload
    movaps    176(%rsp), %xmm19       # 16-byte Reload
    movaps    192(%rsp), %xmm20       # 16-byte Reload
    movaps    208(%rsp), %xmm21       # 16-byte Reload
    movaps    224(%rsp), %xmm22       # 16-byte Reload
    movaps    240(%rsp), %xmm23       # 16-byte Reload
    movaps    256(%rsp), %xmm24       # 16-byte Reload
    movaps    272(%rsp), %xmm25       # 16-byte Reload
    movaps    288(%rsp), %xmm26       # 16-byte Reload
    movaps    304(%rsp), %xmm27       # 16-byte Reload
    movaps    320(%rsp), %xmm28       # 16-byte Reload
    movaps    336(%rsp), %xmm29       # 16-byte Reload
    movaps    352(%rsp), %xmm30       # 16-byte Reload
    movaps    368(%rsp), %xmm31       # 16-byte Reload
[hjl at gnu-6 interrupt-8]$ 

Nehalem doesn't have xmm16-xmm31 and movaps can't be use with xmm16-xmm31.

-- 
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/20160201/b24b13b4/attachment.html>