在 2023/8/20 下午4:25, Xi Ruoyao 写道:
On Thu, 2023-08-17 at 15:20 +0800, Chenghui Pan wrote:
Seems ARMv8-A only guarantees to preserve low 64-bit value of
NEON/floating-point register value. I'm not sure that I modify the
testcase in the right way and maybe we need more investigations. Any
ideas o
On Thu, 2023-08-17 at 15:20 +0800, Chenghui Pan wrote:
> Seems ARMv8-A only guarantees to preserve low 64-bit value of
> NEON/floating-point register value. I'm not sure that I modify the
> testcase in the right way and maybe we need more investigations. Any
> ideas or suggestion?
Sorry, the follo
Hi! I try to investigate on this problem, and modify the testcase to
compile and run on aarch64 for reference, but I get some strange result
(comment shows the info that I see by stepping through by using gdb):
typedef double __attribute__((vector_size(16))) v2df;
void use1(double d) {}
__attrib
The implementation fails to handle this test case properly:
typedef double __attribute__((vector_size(32))) v4df;
void use1(double);
__attribute__((noipa)) double use(double)
{
register double x asm("f24") = 114.514;
__asm__("" : "+f" (x));
return x;
}
void test(void)
{
This is an update of:
https://gcc.gnu.org/pipermail/gcc-patches/2023-August/626194.html
This version of patch set only introduces some small simplications of
implementation. Because I missed the size limitation of mail size, the
huge testsuite patches of v2 and v3 are not shown in the mail list. S
