[LLVMbugs] [Bug 5010] New: llvm-gcc fails to build ffmpeg

bugzilla-daemon at cs.uiuc.edu bugzilla-daemon at cs.uiuc.edu
Sat Sep 19 16:44:00 PDT 2009


           Summary: llvm-gcc fails to build ffmpeg
           Product: new-bugs
           Version: 2.6
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: new bugs
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: bero at arklinux.org
                CC: llvmbugs at cs.uiuc.edu

llvm-gcc -DHAVE_AV_CONFIG_H -I. -I"/usr/src/ark/BUILD/ffmpeg" -D_ISOC99_SOURCE
-march=i686 -fomit-frame-pointer -fweb -frename-registers -mmmx -g
-fomit-frame-pointer -ffast-math --std=gnu99 -O2  -std=c99 -pthread
-I/usr/include/dirac -g -Wdeclaration-after-statement -Wall -Wno-switch
-Wdisabled-optimization -Wpointer-arith -Wredundant-decls -Wno-pointer-sign
-Wcast-qual -Wwrite-strings -Wundef -O3 -fno-math-errno -fno-tree-vectorize    
    -MMD -MF libavcodec/x86/dsputilenc_mmx.d -MT
libavcodec/x86/dsputilenc_mmx.o -c -o libavcodec/x86/dsputilenc_mmx.o
cc1: error in backend: Ran out of registers during register allocation!
Please check your inline asm statement for invalid constraints:
INLINEASM <es:movd %eax, %xmm3
        pshuflw $$0, %xmm3, %xmm3
        punpcklwd %xmm3, %xmm3
        pxor %xmm7, %xmm7
        pxor %xmm4, %xmm4
        movdqa ($2), %xmm5
        pxor %xmm6, %xmm6
        psubw ($3), %xmm6
        mov $$-128, %eax
        .align 1 << 4
        movdqa ($1, %eax), %xmm0
        movdqa %xmm0, %xmm1
        pabsw  %xmm0, %xmm0
        psubusw %xmm6, %xmm0
        pmulhw %xmm5, %xmm0
        por %xmm0, %xmm4
        psignw %xmm1, %xmm0
        movdqa %xmm0, ($5, %eax)
        pcmpeqw %xmm7, %xmm0
        movdqa ($4, %eax), %xmm1
        movdqa %xmm7, ($1, %eax)
        pandn %xmm1, %xmm0
        pmaxsw %xmm0, %xmm3
        add $$16, %eax
         js 1b
        movhlps %xmm3, %xmm0
        pmaxsw %xmm0, %xmm3
        pshuflw $$0x0E, %xmm3, %xmm0
        pmaxsw %xmm0, %xmm3
        pshuflw $$0x01, %xmm3, %xmm0
        pmaxsw %xmm0, %xmm3
        movd %xmm3, %eax
        movzb %al, %eax
        >, 10, %EAX<def>, 9, %reg1348<kill>, 9, %reg1301<kill>, 9,
%reg1345<kill>, 9, %reg1343<kill>, 9, %reg1346<kill>, 2147483657, %EAX, 14,
%EFLAGS<earlyclobber,def,dead> [dbg:

gcc 4.4.x compiles the code without problems.

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