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radeon/llvm: add a pattern for fsqrt

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Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
This commit is contained in:
Vincent Lejeune 2012-10-03 21:40:49 +02:00
parent 99802519b4
commit 876b42663c
1 changed files with 3 additions and 0 deletions
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3
src/gallium/drivers/radeon/R600Instructions.td
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@ -1018,6 +1018,9 @@ let Predicates = [isEGorCayman] in {
def : Pat<(fp_to_uint R600_Reg32:$src),
(FLT_TO_UINT_eg (TRUNC R600_Reg32:$src))>;
def : Pat<(fsqrt R600_Reg32:$src),
(MUL R600_Reg32:$src, (RECIPSQRT_CLAMPED_eg R600_Reg32:$src))>;
//===----------------------------------------------------------------------===//
// Memory read/write instructions
//===----------------------------------------------------------------------===//