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| author | David Miller <davem@davemloft.net> | 2009-02-27 02:38:37 -0800 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-02-27 07:53:37 -0700 |
| commit | bde27b0d94dc2b3d0d4656e2c85ecbbd1245b3ac (patch) | |
| tree | cdf238bfb35763dfa0f28b909f8c30e013af8d0a /src/mesa/sparc/clip.S | |
| parent | e1d276f9351a6524f4a48d9606ae531cc04ccad4 (diff) | |
| download | external_mesa3d-bde27b0d94dc2b3d0d4656e2c85ecbbd1245b3ac.zip external_mesa3d-bde27b0d94dc2b3d0d4656e2c85ecbbd1245b3ac.tar.gz external_mesa3d-bde27b0d94dc2b3d0d4656e2c85ecbbd1245b3ac.tar.bz2 | |
mesa: Fix Sparc cliptest asm code and re-enable.
Stop using register %g7 since that is used by the "system" (ie. the
pthread implementation makes use of it).
Also, the projection vector can be NULL and we shouldn't try to access
it at all in _mesa_sparc_cliptest_points4_np(). ioquake3 would crash
due to this bug.
Finally, unconditionally emit the register directives and re-enable in
_mesa_init_all_sparc_transform_asm().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'src/mesa/sparc/clip.S')
| -rw-r--r-- | src/mesa/sparc/clip.S | 29 |
1 files changed, 9 insertions, 20 deletions
diff --git a/src/mesa/sparc/clip.S b/src/mesa/sparc/clip.S index 58c228e..208843c 100644 --- a/src/mesa/sparc/clip.S +++ b/src/mesa/sparc/clip.S @@ -25,12 +25,8 @@ #define VEC_SIZE_3 7 #define VEC_SIZE_4 15 -#if defined(SVR4) || defined(__SVR4) || defined(__svr4__) - /* Solaris requires this for 64-bit. */ .register %g2, #scratch .register %g3, #scratch - .register %g7, #scratch -#endif .text .align 64 @@ -78,7 +74,7 @@ _mesa_sparc_cliptest_points4: add %g1, 0x4, %g1 ld [%i0 + V4F_STRIDE], %l1 - ld [%i0 + V4F_COUNT], %g7 + ld [%i0 + V4F_COUNT], %l3 LDPTR [%i0 + V4F_START], %i0 LDPTR [%i1 + V4F_START], %i5 ldub [%i3], %g2 @@ -91,12 +87,12 @@ _mesa_sparc_cliptest_points4: st %g3, [%i1 + V4F_FLAGS] mov 3, %g3 st %g3, [%i1 + V4F_SIZE] - st %g7, [%i1 + V4F_COUNT] + st %l3, [%i1 + V4F_COUNT] clr %l2 clr %l0 /* l0: i - * g7: count + * l3: count * l1: stride * l2: c * g2: (tmpAndMask << 8) | tmpOrMask @@ -153,12 +149,12 @@ _mesa_sparc_cliptest_points4: 3: add %i5, 0x10, %i5 ! IEU1 add %l0, 1, %l0 ! IEU0 Group add %i2, 1, %i2 ! IEU0 Group - cmp %l0, %g7 ! IEU1 Group + cmp %l0, %l3 ! IEU1 Group bne 1b ! CTI add %i0, %l1, %i0 ! IEU0 Group stb %g2, [%i3] ! LSU srl %g2, 8, %g3 ! IEU0 Group - cmp %l2, %g7 ! IEU1 Group + cmp %l2, %l3 ! IEU1 Group bl,a 1f ! CTI clr %g3 ! IEU0 1: stb %g3, [%i4] ! LSU Group @@ -174,25 +170,18 @@ _mesa_sparc_cliptest_points4_np: add %g1, 0x4, %g1 ld [%i0 + V4F_STRIDE], %l1 - ld [%i0 + V4F_COUNT], %g7 + ld [%i0 + V4F_COUNT], %l3 LDPTR [%i0 + V4F_START], %i0 - LDPTR [%i1 + V4F_START], %i5 ldub [%i3], %g2 ldub [%i4], %g3 sll %g3, 8, %g3 or %g2, %g3, %g2 - ld [%i1 + V4F_FLAGS], %g3 - or %g3, VEC_SIZE_4, %g3 - st %g3, [%i1 + V4F_FLAGS] - mov 3, %g3 - st %g3, [%i1 + V4F_SIZE] - st %g7, [%i1 + V4F_COUNT] clr %l2 clr %l0 /* l0: i - * g7: count + * l3: count * l1: stride * l2: c * g2: (tmpAndMask << 8) | tmpOrMask @@ -230,12 +219,12 @@ _mesa_sparc_cliptest_points4_np: and %g2, %g4, %g2 ! IEU0 Group 2: add %l0, 1, %l0 ! IEU0 Group add %i2, 1, %i2 ! IEU0 Group - cmp %l0, %g7 ! IEU1 Group + cmp %l0, %l3 ! IEU1 Group bne 1b ! CTI add %i0, %l1, %i0 ! IEU0 Group stb %g2, [%i3] ! LSU srl %g2, 8, %g3 ! IEU0 Group - cmp %l2, %g7 ! IEU1 Group + cmp %l2, %l3 ! IEU1 Group bl,a 1f ! CTI clr %g3 ! IEU0 1: stb %g3, [%i4] ! LSU Group |