DrSocalkwe3n/luajit
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

MIPS64: Add soft-float support to JIT compiler backend.

Browse Source 
Contributed by Djordje Kovacevic and Stefan Pejic from RT-RK.com.
Sponsored by Cisco Systems, Inc.
This commit is contained in:
Mike Pall
2017-06-07 23:56:54 +02:00
parent 0e4a551809
commit a057a07ab7
13 changed files with 286 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
src/vm_mips64.dasc
View File

@@ -1980,6 +1980,38 @@ static void build_subroutines(BuildCtx *ctx)
|1:
| jr ra
|. move CRET1, r0
|
|// FP number to int conversion with a check for soft-float.
|// Modifies CARG1, CRET1, CRET2, TMP0, AT.
|->vm_tointg:
|.if JIT
| dsll CRET2, CARG1, 1
| beqz CRET2, >2
|. li TMP0, 1076
| dsrl AT, CRET2, 53
| dsubu TMP0, TMP0, AT
| sltiu AT, TMP0, 54
| beqz AT, >1
|. dextm CRET2, CRET2, 0, 20
| dinsu CRET2, AT, 21, 21
| slt AT, CARG1, r0
| dsrlv CRET1, CRET2, TMP0
| dsubu CARG1, r0, CRET1
| movn CRET1, CARG1, AT
| li CARG1, 64
| subu TMP0, CARG1, TMP0
| dsllv CRET2, CRET2, TMP0 // Integer check.
| sextw AT, CRET1
| xor AT, CRET1, AT // Range check.
| jr ra
|. movz CRET2, AT, CRET2
|1:
| jr ra
|. li CRET2, 1
|2:
| jr ra
|. move CRET1, r0
|.endif
|.endif
|
|.macro .ffunc_bit, name
@@ -2665,6 +2697,23 @@ static void build_subroutines(BuildCtx *ctx)
|. li CRET1, 0
|.endif
|
|.macro sfmin_max, name, intins
|->vm_sf .. name:
|.if JIT and not FPU
| move TMP2, ra
| bal ->vm_sfcmpolt
|. nop
| move ra, TMP2
| move TMP0, CRET1
| move CRET1, CARG1
| jr ra
|. intins CRET1, CARG2, TMP0
|.endif
|.endmacro
|
| sfmin_max min, movz
| sfmin_max max, movn
|
|//-----------------------------------------------------------------------
|//-- Miscellaneous functions --------------------------------------------
|//-----------------------------------------------------------------------