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sparc: Handle more cases of structure return directly

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This commit is contained in:
Richard Henderson
2014-11-12 09:35:24 +01:00
parent 0686c2e71c
commit 20da5b4132
5 changed files with 152 additions and 105 deletions
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src/sparc/v8.S
+36 -41
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@@ -118,15 +118,6 @@ E SPARC_RET_VOID
restore
E SPARC_RET_STRUCT
unimp
E SPARC_RET_FLOAT
st %f0, [%i2]
ret
restore
E SPARC_RET_DOUBLE
std %f0, [%i2]
ret
restore
nop
E SPARC_RET_UINT8
and %o0, 0xff, %o0
st %o0, [%i2]
@@ -144,28 +135,34 @@ E SPARC_RET_SINT16
sll %o0, 16, %o0
b 7f
sra %o0, 16, %o0
E SPARC_RET_INT64
std %o0, [%i2]
ret
restore
E SPARC_RET_UINT32
7: st %o0, [%i2]
ret
restore
! Unused entries. Don't allow bad data to do worse things.
E 10
E SPARC_RET_SINT32
unimp
E 11
E SPARC_RET_INT64
std %o0, [%i2]
ret
restore
E SPARC_RET_INT128
unimp
E 12
E SPARC_RET_F_8
unimp
E 13
E SPARC_RET_F_6
unimp
E 14
E SPARC_RET_F_4
unimp
E 15
E SPARC_RET_F_2
std %f0, [%i2]
ret
restore
E SPARC_RET_F_3
unimp
E SPARC_RET_F_1
st %f0, [%i2]
ret
restore
! Struct returning functions expect and skip the unimp here.
.align 8
@@ -234,14 +231,6 @@ E SPARC_RET_VOID
E SPARC_RET_STRUCT
jmp %i7+12
restore
E SPARC_RET_FLOAT
ld [%fp-8], %f0
ret
restore
E SPARC_RET_DOUBLE
ldd [%fp-8], %f0
ret
restore
E SPARC_RET_UINT8
ldub [%fp-8+3], %i0
ret
@@ -258,28 +247,34 @@ E SPARC_RET_SINT16
ldsh [%fp-8+2], %i0
ret
restore
E SPARC_RET_INT64
ldd [%fp-8], %i0
ret
restore
E SPARC_RET_UINT32
ld [%fp-8], %i0
ret
restore
! Unused entries. Don't allow bad data to do worse things.
E 10
E SPARC_RET_SINT32
unimp
E 11
E SPARC_RET_INT64
ldd [%fp-8], %i0
ret
restore
E SPARC_RET_INT128
unimp
E 12
E SPARC_RET_F_8
unimp
E 13
E SPARC_RET_F_6
unimp
E 14
E SPARC_RET_F_4
unimp
E 15
E SPARC_RET_F_2
ldd [%fp-8], %f0
ret
restore
E SPARC_RET_F_3
unimp
E SPARC_RET_F_1
ld [%fp-8], %f0
ret
restore
cfi_endproc
.size C(ffi_closure_v8), . - C(ffi_closure_v8)