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#include <stdio.h>
#include <string.h>
typedef unsigned long long int ULong;
typedef unsigned int UInt;
__attribute__((noinline)) float s32_to_f32_imm1(int x)
{
float y;
__asm__ ("vcvt.f32.s32 %0, %1, #1" : "=w"(y) : "0"(x));
return y;
}
__attribute__((noinline)) float s32_to_f32_imm32(int x)
{
float y;
__asm__ ("vcvt.f32.s32 %0, %1, #32" : "=w"(y) : "0"(x));
return y;
}
void try_s32_to_f32 ( int x )
{
float f32 = s32_to_f32_imm32(x);
printf("s32_to_f32_imm32: %11d -> %18.14e\n", x, (double)f32);
f32 = s32_to_f32_imm1(x);
printf("s32_to_f32_imm1: %11d -> %18.14e\n", x, (double)f32);
}
__attribute__((noinline)) float u32_to_f32_imm1(int x)
{
float y;
__asm__ ("vcvt.f32.u32 %0, %1, #1" : "=w"(y) : "0"(x));
return y;
}
__attribute__((noinline)) float u32_to_f32_imm32(int x)
{
float y;
__asm__ ("vcvt.f32.u32 %0, %1, #32" : "=w"(y) : "0"(x));
return y;
}
void try_u32_to_f32 ( unsigned int x )
{
float f32 = u32_to_f32_imm32(x);
printf("u32_to_f32_imm32: %11u -> %18.14e\n", x, (double)f32);
f32 = u32_to_f32_imm1(x);
printf("u32_to_f32_imm1: %11u -> %18.14e\n", x, (double)f32);
}
__attribute__((noinline)) double s32_to_f64_imm1(int x)
{
double block[2];
memset(block, 0x55, sizeof(block));
__asm__ __volatile__(
"mov r8, %1" "\n\t"
"vldr d14, [%0, #8]" "\n\t" // d14 <- junk
"vmov s1, r8" "\n\t"
"vcvt.f64.s32 d14,d14,#1" "\n\t"
"vstr d14, [%0]" "\n\t"
: : /*IN*/"r"(&block[0]), "r"(x) : /*TRASH*/"r8","s28","d14","memory"
);
return block[0];
}
__attribute__((noinline)) double s32_to_f64_imm32(int x)
{
double block[2];
memset(block, 0x55, sizeof(block));
__asm__ __volatile__(
"mov r8, %1" "\n\t"
"vldr d14, [%0, #8]" "\n\t" // d14 <- junk
"vmov s28, r8" "\n\t"
"vcvt.f64.s32 d14,d14,#32" "\n\t"
"vstr d14, [%0]" "\n\t"
: : /*IN*/"r"(&block[0]), "r"(x) : /*TRASH*/"r8","s28","d14","memory"
);
return block[0];
}
void try_s32_to_f64 ( int x )
{
double f64 = s32_to_f64_imm32(x);
printf("s32_to_f64_imm32: %11d -> %18.14e\n", x, f64);
f64 = s32_to_f64_imm1(x);
printf("s32_to_f64_imm1: %11d -> %18.14e\n", x, f64);
}
__attribute__((noinline)) double u32_to_f64_imm1(int x)
{
double block[2];
memset(block, 0x55, sizeof(block));
__asm__ __volatile__(
"mov r8, %1" "\n\t"
"vldr d14, [%0, #8]" "\n\t" // d14 <- junk
"vmov s28, r8" "\n\t"
"vcvt.f64.u32 d14,d14,#1" "\n\t"
"vstr d14, [%0]" "\n\t"
: : /*IN*/"r"(&block[0]), "r"(x) : /*TRASH*/"r8","s28","d14","memory"
);
return block[0];
}
__attribute__((noinline)) double u32_to_f64_imm32(int x)
{
double block[2];
memset(block, 0x55, sizeof(block));
__asm__ __volatile__(
"mov r8, %1" "\n\t"
"vldr d14, [%0, #8]" "\n\t" // d14 <- junk
"vmov s28, r8" "\n\t"
"vcvt.f64.u32 d14,d14,#32" "\n\t"
"vstr d14, [%0]" "\n\t"
: : /*IN*/"r"(&block[0]), "r"(x) : /*TRASH*/"r8","s28","d14","memory"
);
return block[0];
}
void try_u32_to_f64 ( int x )
{
double f64 = u32_to_f64_imm32(x);
printf("u32_to_f64_imm32: %11d -> %18.14e\n", x, f64);
f64 = u32_to_f64_imm1(x);
printf("u32_to_f64_imm1: %11d -> %18.14e\n", x, f64);
}
__attribute__((noinline)) ULong f64_to_s32_imm1 ( double d )
{
double block[5];
memset(block, 0x55, sizeof(block));
block[1] = d;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr d14, [r8, #8]" "\n\t"
"vcvt.s32.f64 d14,d14,#1" "\n\t"
"vstr d14, [r8,#24]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"d14","r8","memory"
);
return *(ULong*)(&block[3]);
}
__attribute__((noinline)) ULong f64_to_s32_imm32 ( double d )
{
double block[5];
memset(block, 0x55, sizeof(block));
block[1] = d;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr d14, [r8, #8]" "\n\t"
"vcvt.s32.f64 d14,d14,#32" "\n\t"
"vstr d14, [r8,#24]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"d14","r8","memory"
);
return *(ULong*)(&block[3]);
}
void try_f64_to_s32 ( double d )
{
ULong res = f64_to_s32_imm32(d);
printf("f64_to_s32_imm32: %18.14e -> 0x%016llx\n", d, res);
res = f64_to_s32_imm1(d);
printf("f64_to_s32_imm1: %18.14e -> 0x%016llx\n", d, res);
}
__attribute__((noinline)) ULong f64_to_u32_imm1 ( double d )
{
double block[5];
memset(block, 0x55, sizeof(block));
block[1] = d;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr d14, [r8, #8]" "\n\t"
"vcvt.u32.f64 d14,d14,#1" "\n\t"
"vstr d14, [r8,#24]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"d14","r8","memory"
);
return *(ULong*)(&block[3]);
}
__attribute__((noinline)) ULong f64_to_u32_imm32 ( double d )
{
double block[5];
memset(block, 0x55, sizeof(block));
block[1] = d;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr d14, [r8, #8]" "\n\t"
"vcvt.u32.f64 d14,d14,#32" "\n\t"
"vstr d14, [r8,#24]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"d14","r8","memory"
);
return *(ULong*)(&block[3]);
}
void try_f64_to_u32 ( double d )
{
ULong res = f64_to_u32_imm32(d);
printf("f64_to_u32_imm32: %18.14e -> 0x%016llx\n", d, res);
res = f64_to_u32_imm1(d);
printf("f64_to_u32_imm1: %18.14e -> 0x%016llx\n", d, res);
}
__attribute__((noinline)) UInt f32_to_s32_imm1 ( float f )
{
float block[5];
memset(block, 0x55, sizeof(block));
block[1] = f;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr s14, [r8, #4]" "\n\t"
"vcvt.s32.f32 s14,s14,#1" "\n\t"
"vstr s14, [r8,#12]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"s14","r8","memory"
);
return *(UInt*)(&block[3]);
}
__attribute__((noinline)) UInt f32_to_s32_imm32 ( float f )
{
float block[5];
memset(block, 0x55, sizeof(block));
block[1] = f;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr s14, [r8, #4]" "\n\t"
"vcvt.s32.f32 s14,s14,#32" "\n\t"
"vstr s14, [r8,#12]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"s14","r8","memory"
);
return *(UInt*)(&block[3]);
}
void try_f32_to_s32 ( float f )
{
UInt res = f32_to_s32_imm32(f);
printf("f32_to_s32_imm32: %18.14e -> 0x%08x\n", (double)f, res);
res = f32_to_s32_imm1(f);
printf("f32_to_s32_imm1: %18.14e -> 0x%08x\n", (double)f, res);
}
__attribute__((noinline)) UInt f32_to_u32_imm1 ( float f )
{
float block[5];
memset(block, 0x55, sizeof(block));
block[1] = f;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr s14, [r8, #4]" "\n\t"
"vcvt.u32.f32 s14,s14,#1" "\n\t"
"vstr s14, [r8,#12]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"s14","r8","memory"
);
return *(UInt*)(&block[3]);
}
__attribute__((noinline)) UInt f32_to_u32_imm32 ( float f )
{
float block[5];
memset(block, 0x55, sizeof(block));
block[1] = f;
__asm__ __volatile__(
"mov r8, %0" "\n\t"
"vldr s14, [r8, #4]" "\n\t"
"vcvt.u32.f32 s14,s14,#32" "\n\t"
"vstr s14, [r8,#12]" "\n\t"
: : /*IN*/"r"(&block[0]) : /*TRASH*/"s14","r8","memory"
);
return *(UInt*)(&block[3]);
}
void try_f32_to_u32 ( float f )
{
UInt res = f32_to_u32_imm32(f);
printf("f32_to_u32_imm32: %18.14e -> 0x%08x\n", (double)f, res);
res = f32_to_u32_imm1(f);
printf("f32_to_u32_imm1: %18.14e -> 0x%08x\n", (double)f, res);
}
int main ( void )
{
int i;
double d;
try_s32_to_f32(0);
try_s32_to_f32(1);
for (i = 100; i < 200; i++) {
try_s32_to_f32(i);
}
try_s32_to_f32(0x7FFFFFFE);
try_s32_to_f32(0x7FFFFFFF);
try_s32_to_f32(0x80000000);
try_s32_to_f32(0x80000001);
try_s32_to_f32(0xFFFFFFFE);
try_s32_to_f32(0xFFFFFFFF);
printf("\n");
try_u32_to_f32(0);
try_u32_to_f32(1);
for (i = 100; i < 200; i++) {
try_u32_to_f32(i);
}
try_u32_to_f32(0x7FFFFFFE);
try_u32_to_f32(0x7FFFFFFF);
try_u32_to_f32(0x80000000);
try_u32_to_f32(0x80000001);
try_u32_to_f32(0xFFFFFFFE);
try_u32_to_f32(0xFFFFFFFF);
printf("\n");
try_s32_to_f64(0);
try_s32_to_f64(1);
for (i = 100; i < 200; i++) {
try_s32_to_f64(i);
}
try_s32_to_f64(0x7FFFFFFE);
try_s32_to_f64(0x7FFFFFFF);
try_s32_to_f64(0x80000000);
try_s32_to_f64(0x80000001);
try_s32_to_f64(0xFFFFFFFE);
try_s32_to_f64(0xFFFFFFFF);
printf("\n");
try_u32_to_f64(0);
try_u32_to_f64(1);
for (i = 100; i < 200; i++) {
try_u32_to_f64(i);
}
try_u32_to_f64(0x7FFFFFFE);
try_u32_to_f64(0x7FFFFFFF);
try_u32_to_f64(0x80000000);
try_u32_to_f64(0x80000001);
try_u32_to_f64(0xFFFFFFFE);
try_u32_to_f64(0xFFFFFFFF);
printf("\n");
try_f64_to_s32(0.0);
try_f64_to_s32(1.0);
try_f64_to_s32(-1.0);
try_f64_to_s32(0.0 / 0.0);
for (d = -100000.01; d < 100000.0; d += 10000.0) {
try_f64_to_s32(d);
}
printf("\n");
try_f64_to_u32(0.0);
try_f64_to_u32(1.0);
try_f64_to_u32(-1.0);
try_f64_to_u32(0.0 / 0.0);
for (d = -100000.01; d < 100000.0; d += 10000.0) {
try_f64_to_u32(d);
}
printf("\n");
try_f32_to_s32(0.0);
try_f32_to_s32(1.0);
try_f32_to_s32(-1.0);
try_f32_to_s32(0.0 / 0.0);
for (d = -100000.01; d < 100000.0; d += 10000.0) {
try_f32_to_s32((float)d);
}
printf("\n");
try_f32_to_u32(0.0);
try_f32_to_u32(1.0);
try_f32_to_u32(-1.0);
try_f32_to_u32(0.0 / 0.0);
for (d = -100000.01; d < 100000.0; d += 10000.0) {
try_f32_to_u32((float)d);
}
return 0;
}
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