From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: torvalds@transmeta.com, linux-kernel@vger.kernel.org
Subject: PATCH: fix warnings in fpu code
Date: Tue, 8 Oct 2002 19:53:45 +0100 (BST) [thread overview]
Message-ID: <E17yzUH-0004rA-00@the-village.bc.nu> (raw)
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.2.5.41/arch/i386/math-emu/poly.h linux.2.5.41-ac1/arch/i386/math-emu/poly.h
--- linux.2.5.41/arch/i386/math-emu/poly.h 2002-07-20 20:11:05.000000000 +0100
+++ linux.2.5.41-ac1/arch/i386/math-emu/poly.h 2002-10-06 22:24:42.000000000 +0100
@@ -75,10 +75,10 @@
/* Add the 12 byte Xsig x2 to Xsig dest, with no checks for overflow. */
static inline void add_Xsig_Xsig(Xsig *dest, const Xsig *x2)
{
- asm volatile ("movl %1,%%edi; movl %2,%%esi;
- movl (%%esi),%%eax; addl %%eax,(%%edi);
- movl 4(%%esi),%%eax; adcl %%eax,4(%%edi);
- movl 8(%%esi),%%eax; adcl %%eax,8(%%edi);"
+ asm volatile ("movl %1,%%edi; movl %2,%%esi;\n"
+ "movl (%%esi),%%eax; addl %%eax,(%%edi);\n"
+ "movl 4(%%esi),%%eax; adcl %%eax,4(%%edi);\n"
+ "movl 8(%%esi),%%eax; adcl %%eax,8(%%edi);\n"
:"=g" (*dest):"g" (dest), "g" (x2)
:"ax","si","di");
}
@@ -90,16 +90,16 @@
problem, but keep fingers crossed! */
static inline void add_two_Xsig(Xsig *dest, const Xsig *x2, long int *exp)
{
- asm volatile ("movl %2,%%ecx; movl %3,%%esi;
- movl (%%esi),%%eax; addl %%eax,(%%ecx);
- movl 4(%%esi),%%eax; adcl %%eax,4(%%ecx);
- movl 8(%%esi),%%eax; adcl %%eax,8(%%ecx);
- jnc 0f;
- rcrl 8(%%ecx); rcrl 4(%%ecx); rcrl (%%ecx)
- movl %4,%%ecx; incl (%%ecx)
- movl $1,%%eax; jmp 1f;
- 0: xorl %%eax,%%eax;
- 1:"
+ asm volatile ("movl %2,%%ecx; movl %3,%%esi;\n"
+ "movl (%%esi),%%eax; addl %%eax,(%%ecx);\n"
+ "movl 4(%%esi),%%eax; adcl %%eax,4(%%ecx);\n"
+ "movl 8(%%esi),%%eax; adcl %%eax,8(%%ecx);\n"
+ "jnc 0f;\n"
+ "rcrl 8(%%ecx); rcrl 4(%%ecx); rcrl (%%ecx)\n"
+ "movl %4,%%ecx; incl (%%ecx)\n"
+ "movl $1,%%eax; jmp 1f;\n"
+ "0: xorl %%eax,%%eax;\n"
+ "1:\n"
:"=g" (*exp), "=g" (*dest)
:"g" (dest), "g" (x2), "g" (exp)
:"cx","si","ax");
@@ -110,11 +110,11 @@
/* This is faster in a loop on my 386 than using the "neg" instruction. */
static inline void negate_Xsig(Xsig *x)
{
- asm volatile("movl %1,%%esi; "
- "xorl %%ecx,%%ecx; "
- "movl %%ecx,%%eax; subl (%%esi),%%eax; movl %%eax,(%%esi); "
- "movl %%ecx,%%eax; sbbl 4(%%esi),%%eax; movl %%eax,4(%%esi); "
- "movl %%ecx,%%eax; sbbl 8(%%esi),%%eax; movl %%eax,8(%%esi); "
+ asm volatile("movl %1,%%esi;\n"
+ "xorl %%ecx,%%ecx;\n"
+ "movl %%ecx,%%eax; subl (%%esi),%%eax; movl %%eax,(%%esi);\n"
+ "movl %%ecx,%%eax; sbbl 4(%%esi),%%eax; movl %%eax,4(%%esi);\n"
+ "movl %%ecx,%%eax; sbbl 8(%%esi),%%eax; movl %%eax,8(%%esi);\n"
:"=g" (*x):"g" (x):"si","ax","cx");
}
reply other threads:[~2002-10-08 18:57 UTC|newest]
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