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gcc: conjf suboptimal #67

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olajep opened this issue Oct 7, 2016 · 0 comments

Contributor

olajep commented Oct 7, 2016

Don't know what's going on here:

// myconjf.c
// epiphany-elf-gcc -O3 -ffast-math -c
#include <complex.h>
float complex myconjf(float complex n)
{
        return conjf(n);
}

What I get

myconjf:
mov r2,0x0
movt r2,0x8000
eor r2,r2,r1
mov r3,r0
mov r0,r3
mov r1,r2
rts

What I want

myconjf:
mov r2,0x0
movt r2,0x8000
eor r1,r2,r1
rts

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