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math: move x87-family lrint functions to C with inline asm
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parent
6bbdbfdcde
commit
9443f1b5cf
16 changed files with 64 additions and 60 deletions
8
src/math/i386/llrint.c
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8
src/math/i386/llrint.c
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@ -0,0 +1,8 @@
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#include <math.h>
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long long llrint(double x)
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{
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long long r;
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__asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,8 +0,0 @@
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.global llrint
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.type llrint,@function
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llrint:
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fldl 4(%esp)
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fistpll 4(%esp)
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mov 4(%esp),%eax
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mov 8(%esp),%edx
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ret
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8
src/math/i386/llrintf.c
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src/math/i386/llrintf.c
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@ -0,0 +1,8 @@
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#include <math.h>
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long long llrintf(float x)
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{
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long long r;
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__asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,9 +0,0 @@
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.global llrintf
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.type llrintf,@function
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llrintf:
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sub $8,%esp
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flds 12(%esp)
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fistpll (%esp)
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pop %eax
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pop %edx
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ret
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8
src/math/i386/llrintl.c
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8
src/math/i386/llrintl.c
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@ -0,0 +1,8 @@
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#include <math.h>
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long long llrintl(long double x)
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{
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long long r;
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__asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,8 +0,0 @@
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.global llrintl
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.type llrintl,@function
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llrintl:
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fldt 4(%esp)
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fistpll 4(%esp)
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mov 4(%esp),%eax
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mov 8(%esp),%edx
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ret
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8
src/math/i386/lrint.c
Normal file
8
src/math/i386/lrint.c
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@ -0,0 +1,8 @@
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#include <math.h>
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long lrint(double x)
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{
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long r;
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__asm__ ("fistpl %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,7 +0,0 @@
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.global lrint
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.type lrint,@function
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lrint:
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fldl 4(%esp)
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fistpl 4(%esp)
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mov 4(%esp),%eax
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ret
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8
src/math/i386/lrintf.c
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8
src/math/i386/lrintf.c
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#include <math.h>
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long lrintf(float x)
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{
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long r;
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__asm__ ("fistpl %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,7 +0,0 @@
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.global lrintf
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.type lrintf,@function
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lrintf:
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flds 4(%esp)
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fistpl 4(%esp)
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mov 4(%esp),%eax
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ret
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8
src/math/i386/lrintl.c
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8
src/math/i386/lrintl.c
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#include <math.h>
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long lrintl(long double x)
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{
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long r;
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__asm__ ("fistpl %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,7 +0,0 @@
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.global lrintl
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.type lrintl,@function
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lrintl:
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fldt 4(%esp)
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fistpl 4(%esp)
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mov 4(%esp),%eax
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ret
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8
src/math/x86_64/llrintl.c
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src/math/x86_64/llrintl.c
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#include <math.h>
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long long llrintl(long double x)
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{
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long long r;
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__asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,7 +0,0 @@
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.global llrintl
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.type llrintl,@function
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llrintl:
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fldt 8(%rsp)
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fistpll 8(%rsp)
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mov 8(%rsp),%rax
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ret
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8
src/math/x86_64/lrintl.c
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8
src/math/x86_64/lrintl.c
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#include <math.h>
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long lrintl(long double x)
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{
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long r;
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__asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
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return r;
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}
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@ -1,7 +0,0 @@
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.global lrintl
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.type lrintl,@function
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lrintl:
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fldt 8(%rsp)
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fistpll 8(%rsp)
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mov 8(%rsp),%rax
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ret
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