diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/runtime/mkpreempt.go | 26 | ||||
| -rw-r--r-- | src/runtime/preempt_loong64.s | 34 |
2 files changed, 55 insertions, 5 deletions
diff --git a/src/runtime/mkpreempt.go b/src/runtime/mkpreempt.go index 2bd2ef07fa..769c4ffc5c 100644 --- a/src/runtime/mkpreempt.go +++ b/src/runtime/mkpreempt.go @@ -610,10 +610,30 @@ func genLoong64(g *gen) { l.add(movf, reg, regsize) } - // save/restore FCC0 + // Add condition flag register fcc0-fcc7 + sv := "" + rs := "" + last := 7 + for i := 0; i <= last; i++ { + msb := 7 + (i * 8) + lsb := 0 + (i * 8) + + // MOVV FCCx, R4, + // BSTRINSV $msb, R4, $lsb, R5 + sv += fmt.Sprintf("%s FCC%d, R4\n", mov, i) + sv += fmt.Sprintf("BSTRINSV $%d, R4, $%d, R5\n", msb, lsb) + + // BSTRPICKV $msb, R5, $lsb, R4 + // MOVV R4, FCCx + rs += fmt.Sprintf("BSTRPICKV $%d, R5, $%d, R4\n", msb, lsb) + rs += fmt.Sprintf("%s R4, FCC%d", mov, i) + if i != last { + rs += fmt.Sprintf("\n") + } + } l.addSpecial( - mov+" FCC0, R4\n"+mov+" R4, %d(R3)", - mov+" %d(R3), R4\n"+mov+" R4, FCC0", + sv+mov+" R5, %d(R3)", + mov+" %d(R3), R5\n"+rs, regsize) // allocate frame, save PC of interrupted instruction (in LR) diff --git a/src/runtime/preempt_loong64.s b/src/runtime/preempt_loong64.s index bb9c948365..626dc4b6f6 100644 --- a/src/runtime/preempt_loong64.s +++ b/src/runtime/preempt_loong64.s @@ -65,10 +65,40 @@ TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0 MOVD F30, 456(R3) MOVD F31, 464(R3) MOVV FCC0, R4 - MOVV R4, 472(R3) + BSTRINSV $7, R4, $0, R5 + MOVV FCC1, R4 + BSTRINSV $15, R4, $8, R5 + MOVV FCC2, R4 + BSTRINSV $23, R4, $16, R5 + MOVV FCC3, R4 + BSTRINSV $31, R4, $24, R5 + MOVV FCC4, R4 + BSTRINSV $39, R4, $32, R5 + MOVV FCC5, R4 + BSTRINSV $47, R4, $40, R5 + MOVV FCC6, R4 + BSTRINSV $55, R4, $48, R5 + MOVV FCC7, R4 + BSTRINSV $63, R4, $56, R5 + MOVV R5, 472(R3) CALL ·asyncPreempt2(SB) - MOVV 472(R3), R4 + MOVV 472(R3), R5 + BSTRPICKV $7, R5, $0, R4 MOVV R4, FCC0 + BSTRPICKV $15, R5, $8, R4 + MOVV R4, FCC1 + BSTRPICKV $23, R5, $16, R4 + MOVV R4, FCC2 + BSTRPICKV $31, R5, $24, R4 + MOVV R4, FCC3 + BSTRPICKV $39, R5, $32, R4 + MOVV R4, FCC4 + BSTRPICKV $47, R5, $40, R4 + MOVV R4, FCC5 + BSTRPICKV $55, R5, $48, R4 + MOVV R4, FCC6 + BSTRPICKV $63, R5, $56, R4 + MOVV R4, FCC7 MOVD 464(R3), F31 MOVD 456(R3), F30 MOVD 448(R3), F29 |