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| author | Ruiling Song <ruiling.song@intel.com> | 2014-05-30 16:22:30 +0800 |
|---|---|---|
| committer | Zhigang Gong <zhigang.gong@intel.com> | 2014-05-30 17:54:30 +0800 |
| commit | 871389f906d6f6d33703851eee7111390c562bc5 (patch) | |
| tree | 7c5114317478ea619a1be920d6cf72c52ee30082 | |
| parent | dc84f4e0aacf80e7b137c39fcf4858de9e191bf4 (diff) | |
| download | beignet-871389f906d6f6d33703851eee7111390c562bc5.tar.gz | |
GBE: Fix bitcast between long and other type.
As we store long low/high 32bits separately, when we do bitcast
like int64 --> int16, the horizontal stride of the int64's low/high
half should be set as 2 instead of 4.
This fix an regression of opencv test:
Imgproc/Threshold.Mat/40, where GetParam() = (16SC1, 0, 0, false)
Signed-off-by: Ruiling Song <ruiling.song@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
| -rw-r--r-- | backend/src/backend/gen_insn_selection.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/backend/src/backend/gen_insn_selection.cpp b/backend/src/backend/gen_insn_selection.cpp index b651c195..3530d2c9 100644 --- a/backend/src/backend/gen_insn_selection.cpp +++ b/backend/src/backend/gen_insn_selection.cpp @@ -3090,7 +3090,7 @@ namespace gbe wideReg = sel.selReg(insn.getDst(index/multiple), narrowType); narrowReg = sel.selReg(insn.getSrc(i), narrowType); //retype to narrow type } - if(wideReg.hstride != GEN_VERTICAL_STRIDE_0) { + if(wideReg.hstride != GEN_HORIZONTAL_STRIDE_0) { if(multiple == 2) { wideReg = sel.unpacked_uw(wideReg.reg()); wideReg = GenRegister::retype(wideReg, getGenType(narrowType)); @@ -3107,6 +3107,15 @@ namespace gbe wideReg.subphysical = 1; } if(isInt64) { + if(wideReg.hstride != GEN_HORIZONTAL_STRIDE_0) { + // as we store long by bottom & high part separately, we have to divide hstride by 2 + if (wideReg.hstride == GEN_HORIZONTAL_STRIDE_2) + wideReg.hstride = GEN_HORIZONTAL_STRIDE_1; + else if (wideReg.hstride == GEN_HORIZONTAL_STRIDE_4) + wideReg.hstride = GEN_HORIZONTAL_STRIDE_2; + else + GBE_ASSERT(0); + } // offset to next half wideReg.subphysical = 1; if(i >= multiple/2) |