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Diffstat (limited to 'gcc/config/rs6000/darwin-vecsave.asm')
-rw-r--r-- | gcc/config/rs6000/darwin-vecsave.asm | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/gcc/config/rs6000/darwin-vecsave.asm b/gcc/config/rs6000/darwin-vecsave.asm new file mode 100644 index 00000000000..8c5352ee709 --- /dev/null +++ b/gcc/config/rs6000/darwin-vecsave.asm @@ -0,0 +1,133 @@ +/* APPLE LOCAL file AltiVec */ +/* Vector save/restore routines for Darwin. Note that each vector + save/restore requires 2 instructions (8 bytes.) + + THE SAVE AND RESTORE ROUTINES CAN HAVE ONLY ONE GLOBALLY VISIBLE + ENTRY POINT - callers have to jump to "saveFP+60" to save f29..f31, + for example. For FP reg saves/restores, it takes one instruction + (4 bytes) to do the operation; for Vector regs, 2 instructions are + required (8 bytes.) + + MORAL: DO NOT MESS AROUND WITH THESE FUNCTIONS! */ + +.text + .align 2 + +.private_extern saveVEC +saveVEC: + li r11,-192 + stvx v20,r11,r0 + li r11,-176 + stvx v21,r11,r0 + li r11,-160 + stvx v22,r11,r0 + li r11,-144 + stvx v23,r11,r0 + li r11,-128 + stvx v24,r11,r0 + li r11,-112 + stvx v25,r11,r0 + li r11,-96 + stvx v26,r11,r0 + li r11,-80 + stvx v27,r11,r0 + li r11,-64 + stvx v28,r11,r0 + li r11,-48 + stvx v29,r11,r0 + li r11,-32 + stvx v30,r11,r0 + li r11,-16 + stvx v31,r11,r0 + blr + +.private_extern restVEC +restVEC: + li r11,-192 + lvx v20,r11,r0 + li r11,-176 + lvx v21,r11,r0 + li r11,-160 + lvx v22,r11,r0 + li r11,-144 + lvx v23,r11,r0 + li r11,-128 + lvx v24,r11,r0 + li r11,-112 + lvx v25,r11,r0 + li r11,-96 + lvx v26,r11,r0 + li r11,-80 + lvx v27,r11,r0 + li r11,-64 + lvx v28,r11,r0 + li r11,-48 + lvx v29,r11,r0 + li r11,-32 + lvx v30,r11,r0 + li r11,-16 + lvx v31,r11,r0 + blr + +/* saveVEC_vr11 -- as saveVEC but VRsave is returned in R11. */ + +.private_extern saveVEC_vr11 +saveVEC_vr11: + li r11,-192 + stvx v20,r11,r0 + li r11,-176 + stvx v21,r11,r0 + li r11,-160 + stvx v22,r11,r0 + li r11,-144 + stvx v23,r11,r0 + li r11,-128 + stvx v24,r11,r0 + li r11,-112 + stvx v25,r11,r0 + li r11,-96 + stvx v26,r11,r0 + li r11,-80 + stvx v27,r11,r0 + li r11,-64 + stvx v28,r11,r0 + li r11,-48 + stvx v29,r11,r0 + li r11,-32 + stvx v30,r11,r0 + li r11,-16 + stvx v31,r11,r0 + mfspr r11,VRsave + blr + +/* As restVec, but the original VRsave value passed in R10. */ + +.private_extern restVEC_vr10 +restVEC_vr10: + li r11,-192 + lvx v20,r11,r0 + li r11,-176 + lvx v21,r11,r0 + li r11,-160 + lvx v22,r11,r0 + li r11,-144 + lvx v23,r11,r0 + li r11,-128 + lvx v24,r11,r0 + li r11,-112 + lvx v25,r11,r0 + li r11,-96 + lvx v26,r11,r0 + li r11,-80 + lvx v27,r11,r0 + li r11,-64 + lvx v28,r11,r0 + li r11,-48 + lvx v29,r11,r0 + li r11,-32 + lvx v30,r11,r0 + li r11,-16 + lvx v31,r11,r0 + /* restore VRsave from R10. */ + mtspr VRsave,r10 + blr |