Extending copy propagation to include IntToFp and FpToInt cases

gkluczek · gfxbot · commit 188c4d69bb94 · 2019-04-10T08:53:06.000-07:00
Change-Id: Ie386e158d9cf9e909ecf9e0c5bc8810276781219
diff --git a/visa/Gen4_IR.cpp b/visa/Gen4_IR.cpp
@@ -2047,6 +2047,7 @@ bool G4_INST::canPropagateTo(G4_INST *useInst, Gen4_Operand_Number opndNum, MovT
     // such as add, cmp, and mul, when types of all source operands could be
     // consistent.
     if (!(useInst->isRawMov() && dstType == useType) &&
+        !(MT == Copy && propType == useType) &&
         ((IS_FTYPE(dstType) && (IS_TYPE_INT(propType) || IS_VINTTYPE(propType))) ||
          (IS_TYPE_INT(dstType) && (IS_FTYPE(propType) || IS_VFTYPE(propType)))))
     {

Original file line number	Diff line number	Diff line change
`@@ -2047,6 +2047,7 @@ bool G4_INST::canPropagateTo(G4_INST *useInst, Gen4_Operand_Number opndNum, MovT`
`2047`	`2047`	`// such as add, cmp, and mul, when types of all source operands could be`
`2048`	`2048`	`// consistent.`
`2049`	`2049`	`if (!(useInst->isRawMov() && dstType == useType) &&`
	`2050`	`+ !(MT == Copy && propType == useType) &&`
`2050`	`2051`	`((IS_FTYPE(dstType) && (IS_TYPE_INT(propType) \|\| IS_VINTTYPE(propType))) \|\|`
`2051`	`2052`	`(IS_TYPE_INT(dstType) && (IS_FTYPE(propType) \|\| IS_VFTYPE(propType)))))`
`2052`	`2053`	`{`