[Qemu-devel] [PATCH 8/9] target-ppc: Correct VSX FP to Integer Conversion

[Tom Musta <tommusta@gmail.com>]

This patch corrects the VSX floating point to integer conversion
instructions by using the endian correct accessors.  The auxiliary
"j" index used by the existing macros is now obsolete and is removed.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Tested-by: Tom Musta <tommusta@gmail.com>
---
 target-ppc/fpu_helper.c |   36 +++++++++++++++---------------------
 1 files changed, 15 insertions(+), 21 deletions(-)

diff --git a/target-ppc/fpu_helper.c b/target-ppc/fpu_helper.c
index 12bec90..abba703 100644
--- a/target-ppc/fpu_helper.c
+++ b/target-ppc/fpu_helper.c
@@ -2555,10 +2555,9 @@ uint64_t helper_xscvspdpn(CPUPPCState *env, uint64_t xb)
  *   ttp   - target type (int32, uint32, int64 or uint64)
  *   sfld  - source vsr_t field
  *   tfld  - target vsr_t field
- *   jdef  - definition of the j index (i or 2*i)
  *   rnan  - resulting NaN
  */
-#define VSX_CVT_FP_TO_INT(op, nels, stp, ttp, sfld, tfld, jdef, rnan)        \
+#define VSX_CVT_FP_TO_INT(op, nels, stp, ttp, sfld, tfld, rnan)              \
 void helper_##op(CPUPPCState *env, uint32_t opcode)                          \
 {                                                                            \
     ppc_vsr_t xt, xb;                                                        \
@@ -2568,7 +2567,6 @@ void helper_##op(CPUPPCState *env, uint32_t opcode)                          \
     getVSR(xT(opcode), &xt, env);                                            \
                                                                              \
     for (i = 0; i < nels; i++) {                                             \
-        int j = jdef;                                                        \
         if (unlikely(stp##_is_any_nan(xb.sfld))) {                           \
             if (stp##_is_signaling_nan(xb.sfld)) {                           \
                 fload_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0);       \
@@ -2588,27 +2586,23 @@ void helper_##op(CPUPPCState *env, uint32_t opcode)                          \
     helper_float_check_status(env);                                          \
 }
 
-VSX_CVT_FP_TO_INT(xscvdpsxds, 1, float64, int64, f64[j], u64[i], i, \
+VSX_CVT_FP_TO_INT(xscvdpsxds, 1, float64, int64, VsrD(0), VsrD(0), \
                   0x8000000000000000ULL)
-VSX_CVT_FP_TO_INT(xscvdpsxws, 1, float64, int32, f64[i], u32[j], \
-                  2*i + JOFFSET, 0x80000000U)
-VSX_CVT_FP_TO_INT(xscvdpuxds, 1, float64, uint64, f64[j], u64[i], i, 0ULL)
-VSX_CVT_FP_TO_INT(xscvdpuxws, 1, float64, uint32, f64[i], u32[j], \
-                  2*i + JOFFSET, 0U)
-VSX_CVT_FP_TO_INT(xvcvdpsxds, 2, float64, int64, f64[j], u64[i], i, \
+VSX_CVT_FP_TO_INT(xscvdpsxws, 1, float64, int32, VsrD(0), VsrW(1), \
+                  0x80000000U)
+VSX_CVT_FP_TO_INT(xscvdpuxds, 1, float64, uint64, VsrD(0), VsrD(0), 0ULL)
+VSX_CVT_FP_TO_INT(xscvdpuxws, 1, float64, uint32, VsrD(0), VsrW(1), 0U)
+VSX_CVT_FP_TO_INT(xvcvdpsxds, 2, float64, int64, VsrD(i), VsrD(i), \
                   0x8000000000000000ULL)
-VSX_CVT_FP_TO_INT(xvcvdpsxws, 2, float64, int32, f64[i], u32[j], \
-                  2*i + JOFFSET, 0x80000000U)
-VSX_CVT_FP_TO_INT(xvcvdpuxds, 2, float64, uint64, f64[j], u64[i], i, 0ULL)
-VSX_CVT_FP_TO_INT(xvcvdpuxws, 2, float64, uint32, f64[i], u32[j], \
-                  2*i + JOFFSET, 0U)
-VSX_CVT_FP_TO_INT(xvcvspsxds, 2, float32, int64, f32[j], u64[i], \
-                  2*i + JOFFSET, 0x8000000000000000ULL)
-VSX_CVT_FP_TO_INT(xvcvspsxws, 4, float32, int32, f32[j], u32[j], i, \
+VSX_CVT_FP_TO_INT(xvcvdpsxws, 2, float64, int32, VsrD(i), VsrW(2*i), \
                   0x80000000U)
-VSX_CVT_FP_TO_INT(xvcvspuxds, 2, float32, uint64, f32[j], u64[i], \
-                  2*i + JOFFSET, 0ULL)
-VSX_CVT_FP_TO_INT(xvcvspuxws, 4, float32, uint32, f32[j], u32[i], i, 0U)
+VSX_CVT_FP_TO_INT(xvcvdpuxds, 2, float64, uint64, VsrD(i), VsrD(i), 0ULL)
+VSX_CVT_FP_TO_INT(xvcvdpuxws, 2, float64, uint32, VsrD(i), VsrW(2*i), 0U)
+VSX_CVT_FP_TO_INT(xvcvspsxds, 2, float32, int64, VsrW(2*i), VsrD(i), \
+                  0x8000000000000000ULL)
+VSX_CVT_FP_TO_INT(xvcvspsxws, 4, float32, int32, VsrW(i), VsrW(i), 0x80000000U)
+VSX_CVT_FP_TO_INT(xvcvspuxds, 2, float32, uint64, VsrW(2*i), VsrD(i), 0ULL)
+VSX_CVT_FP_TO_INT(xvcvspuxws, 4, float32, uint32, VsrW(i), VsrW(i), 0U)
 
 /* VSX_CVT_INT_TO_FP - VSX integer to floating point conversion
  *   op    - instruction mnemonic
-- 
1.7.1