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Executable test case for asm flags, by David Wohlferd.

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* gcc.target/i386/asm-flag-6.c: New test.

From-SVN: r234900
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David Wohlferd 2016-04-12 13:04:44 +00:00 • committed by Bernd Schmidt
parent d97633ef65
commit 3df530d3df
2 changed files with 280 additions and 0 deletions
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4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2016-04-12 David Wohlferd <dw@LimeGreenSocks.com>
* gcc.target/i386/asm-flag-6.c: New test.
2016-04-12 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/68756

276
gcc/testsuite/gcc.target/i386/asm-flag-6.c Normal file
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/* Executable testcase for 'output flags.' */
/* { dg-do run } */
char TestC ()
{
char r;
__asm__ ("stc" : "=@ccc"(r));
if (r)
{
__asm__ ("clc" : "=@ccnc"(r));
if (r)
return 1;
}
return 0;
}
char TestE ()
{
char r;
/* 1 equals 1. */
__asm__ ("cmp $1, %1" : "=@cce"(r) : "r" (1));
if (r)
{
/* 1 not equals 2. */
__asm__ ("cmp $2, %1" : "=@ccne"(r) : "r" (1));
if (r)
return 1;
}
return 0;
}
char TestZ ()
{
char r;
/* 1 equals 1. */
__asm__ ("cmp $1, %1" : "=@ccz"(r) : "r" (1));
if (r)
{
/* 1 not equals 2. */
__asm__ ("cmp $2, %1" : "=@ccnz"(r) : "r" (1));
if (r)
return 1;
}
return 0;
}
char TestA ()
{
char r;
/* 1 a 0. */
__asm__ ("cmp $0, %1" : "=@cca"(r) : "r" (1));
if (r)
{
/* 1 na 2. */
__asm__ ("cmp $2, %1" : "=@ccna"(r) : "r" (1));
if (r)
{
/* 1 na 1. */
__asm__ ("cmp $1, %1" : "=@ccna"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestAE ()
{
char r;
/* 1 ae 0. */
__asm__ ("cmp $0, %1" : "=@ccae"(r) : "r" (1));
if (r)
{
/* 1 nae 2. */
__asm__ ("cmp $2, %1" : "=@ccnae"(r) : "r" (1));
if (r)
{
/* 1 ae 1. */
__asm__ ("cmp $1, %1" : "=@ccae"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestB ()
{
char r;
/* 1 b 2. */
__asm__ ("cmp $2, %1" : "=@ccb"(r) : "r" (1));
if (r)
{
/* 1 nb 0. */
__asm__ ("cmp $0, %1" : "=@ccnb"(r) : "r" (1));
if (r)
{
/* 1 nb 1. */
__asm__ ("cmp $1, %1" : "=@ccnb"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestBE ()
{
char r;
/* 1 be 2. */
__asm__ ("cmp $2, %1" : "=@ccbe"(r) : "r" (1));
if (r)
{
/* 1 nbe 0. */
__asm__ ("cmp $0, %1" : "=@ccnbe"(r) : "r" (1));
if (r)
{
/* 1 be 1. */
__asm__ ("cmp $1, %1" : "=@ccbe"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestG ()
{
char r;
/* 1 g 0. */
__asm__ ("cmp $0, %1" : "=@ccg"(r) : "r" (1));
if (r)
{
/* 1 ng 2. */
__asm__ ("cmp $2, %1" : "=@ccng"(r) : "r" (1));
if (r)
{
/* 1 ng 1. */
__asm__ ("cmp $1, %1" : "=@ccng"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestGE ()
{
char r;
/* 1 ge 0. */
__asm__ ("cmp $0, %1" : "=@ccge"(r) : "r" (1));
if (r)
{
/* 1 nge 2. */
__asm__ ("cmp $2, %1" : "=@ccnge"(r) : "r" (1));
if (r)
{
/* 1 ge 1. */
__asm__ ("cmp $1, %1" : "=@ccge"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestL ()
{
char r;
/* 1 l 2. */
__asm__ ("cmp $2, %1" : "=@ccl"(r) : "r" (1));
if (r)
{
/* 1 nl 0. */
__asm__ ("cmp $0, %1" : "=@ccnl"(r) : "r" (1));
if (r)
{
/* 1 nl 1. */
__asm__ ("cmp $1, %1" : "=@ccnl"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestLE ()
{
char r;
/* 1 le 2. */
__asm__ ("cmp $2, %1" : "=@ccle"(r) : "r" (1));
if (r)
{
/* 1 nle 0. */
__asm__ ("cmp $0, %1" : "=@ccnle"(r) : "r" (1));
if (r)
{
/* 1 le 1. */
__asm__ ("cmp $1, %1" : "=@ccle"(r) : "r" (1));
if (r)
return 1;
}
}
return 0;
}
char TestO ()
{
char r;
unsigned char res = 128;
/* overflow. */
__asm__ ("addb $128, %1" : "=@cco"(r), "+r"(res));
if (r)
{
/* not overflow. */
__asm__ ("addb $1, %1" : "=@ccno"(r), "+r"(res));
if (r)
return 1;
}
return 0;
}
char TestP ()
{
char r, res = 1;
/* even # bits. */
__asm__ ("addb $2, %1" : "=@ccp"(r), "+r"(res));
if (r)
{
/* odd # bits. */
__asm__ ("addb $1, %1" : "=@ccnp"(r), "+r"(res));
if (r)
return 1;
}
return 0;
}
char TestS ()
{
char r, res = 1;
/* sign bit set. */
__asm__ ("addb $128, %1" : "=@ccs"(r), "+r"(res));
if (r)
{
/* sign bit not set. */
__asm__ ("subb $128, %1" : "=@ccns"(r), "+r"(res));
if (r)
return 1;
}
return 0;
}
/* dg-do treats exit code of 0 as success. */
int main ()
{
if (TestC () && TestE () && TestZ () && TestA ()
&& TestAE () && TestB () && TestBE () && TestG ()
&& TestGE () && TestL () && TestLE () && TestO ()
&& TestP () && TestS ())
return 0;
__builtin_abort ();
}