diff options
Diffstat (limited to 'src/runtime')
| -rw-r--r-- | src/runtime/mkpreempt.go | 7 | ||||
| -rw-r--r-- | src/runtime/preempt_loong64.s | 12 |
2 files changed, 15 insertions, 4 deletions
diff --git a/src/runtime/mkpreempt.go b/src/runtime/mkpreempt.go index ca1c6e4a0e..8d7b3e7ceb 100644 --- a/src/runtime/mkpreempt.go +++ b/src/runtime/mkpreempt.go @@ -759,6 +759,13 @@ func genLoong64(g *gen) { mov+" %d(R3), R5\n"+rs, regsize) + // Add floating point control/status register fcsr0, + // fcsr1~fcsr3 are aliases for some fields in fcsr0. + l.addSpecial( + mov+" FCSR0, R5\n"+mov+" R5, %d(R3)", + mov+" %d(R3), R5\n"+mov+" R5, FCSR0", + regsize) + // Create layouts for lasx, lsx and fp registers. lasxRegs := layout{sp: xReg} lsxRegs := lasxRegs diff --git a/src/runtime/preempt_loong64.s b/src/runtime/preempt_loong64.s index 4bc7ea3947..562f97780a 100644 --- a/src/runtime/preempt_loong64.s +++ b/src/runtime/preempt_loong64.s @@ -4,8 +4,8 @@ #include "textflag.h" TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0 - MOVV R1, -224(R3) - SUBV $224, R3 + MOVV R1, -232(R3) + SUBV $232, R3 // Save GPs MOVV R4, 8(R3) MOVV R5, 16(R3) @@ -50,6 +50,8 @@ TEXT ·asyncPreempt(SB),NOSPLIT|NOFRAME,$0-0 MOVV FCC7, R4 BSTRINSV $63, R4, $56, R5 MOVV R5, 216(R3) + MOVV FCSR0, R5 + MOVV R5, 224(R3) // Save extended register state to p.xRegs.scratch MOVV g_m(g), R4 MOVV m_p(R4), R4 @@ -272,6 +274,8 @@ restoreLASX: XVMOVQ 0(R4), X0 // Restore GPs restoreGPs: + MOVV 224(R3), R5 + MOVV R5, FCSR0 MOVV 216(R3), R5 BSTRPICKV $7, R5, $0, R4 MOVV R4, FCC0 @@ -315,7 +319,7 @@ restoreGPs: MOVV 24(R3), R6 MOVV 16(R3), R5 MOVV 8(R3), R4 - MOVV 224(R3), R1 + MOVV 232(R3), R1 MOVV (R3), R30 - ADDV $232, R3 + ADDV $240, R3 JMP (R30) |