idiv,irem

diff --git a/jit/powerpc/asmpart.S b/jit/powerpc/asmpart.S
index 16d23d8b24f8d23d499cad5c4404a531299e5a52..563b778fba4b136043957ea4c3bddc63ba32018b 100644 (file)
--- a/jit/powerpc/asmpart.S
+++ b/jit/powerpc/asmpart.S
@@ -717,6 +717,13 @@ _asm_builtin_idiv:
 0:
        mr. r4,r4
        beq nb_idiv
+       lis itmp3,0x8000
+       cmpw r3,itmp3
+       bne normal_idiv
+       cmpwi r4,-1
+       bne normal_idiv
+       blr
+normal_idiv:
        divw r3,r3,r4
        blr
 nb_idiv:
@@ -728,11 +735,20 @@ nb_idiv:
 .globl _asm_builtin_irem
 _asm_builtin_irem:
 0:
+       mr itmp2,r3
        mr. r4,r4
        beq nb_irem
-       divw itmp3,r3,r4
+       lis itmp3,0x8000
+       cmpw itmp2,itmp3
+       bne normal_irem
+       cmpwi r4,-1
+       bne normal_irem
+       li r3,0
+       beqlr
+normal_irem:
+       divw itmp3,itmp2,r4
        mullw itmp3,itmp3,r4
-       subf r3,itmp3,r3
+       subf r3,itmp3,itmp2
        blr
 nb_irem:
        lwz xptr,lo16(proto_java_lang_ArithmeticException-0b)(pv)

diff --git a/src/vm/jit/powerpc/asmpart.S b/src/vm/jit/powerpc/asmpart.S
index 16d23d8b24f8d23d499cad5c4404a531299e5a52..563b778fba4b136043957ea4c3bddc63ba32018b 100644 (file)
--- a/src/vm/jit/powerpc/asmpart.S
+++ b/src/vm/jit/powerpc/asmpart.S
@@ -717,6 +717,13 @@ _asm_builtin_idiv:
 0:
        mr. r4,r4
        beq nb_idiv
+       lis itmp3,0x8000
+       cmpw r3,itmp3
+       bne normal_idiv
+       cmpwi r4,-1
+       bne normal_idiv
+       blr
+normal_idiv:
        divw r3,r3,r4
        blr
 nb_idiv:
@@ -728,11 +735,20 @@ nb_idiv:
 .globl _asm_builtin_irem
 _asm_builtin_irem:
 0:
+       mr itmp2,r3
        mr. r4,r4
        beq nb_irem
-       divw itmp3,r3,r4
+       lis itmp3,0x8000
+       cmpw itmp2,itmp3
+       bne normal_irem
+       cmpwi r4,-1
+       bne normal_irem
+       li r3,0
+       beqlr
+normal_irem:
+       divw itmp3,itmp2,r4
        mullw itmp3,itmp3,r4
-       subf r3,itmp3,r3
+       subf r3,itmp3,itmp2
        blr
 nb_irem:
        lwz xptr,lo16(proto_java_lang_ArithmeticException-0b)(pv)