search for: xsmaddmsp

...I wonder if we can fix this by making the transformation simpler, that is, instead of doing: %vreg12<def> = COPY %vreg7; VSSRC:%vreg12,%vreg7 %vreg12<def,tied1> = XSMADDASP %vreg12<tied0>, %vreg0, %vreg4; VSSRC:%vreg12,%vreg0 F4RC:%vreg4 -> %vreg0<def,tied1> = XSMADDMSP %vreg0<tied0>, %vreg4, %vreg7; VSSRC:%vreg0,%vreg7 F4RC:%vreg4 , we do: %vreg12<def> = COPY %vreg7; VSSRC:%vreg12,%vreg7 %vreg12<def,tied1> = XSMADDASP %vreg12<tied0>, %vreg0, %vreg4; VSSRC:%vreg12,%vreg0 F4RC:%vreg4 -> %vreg0<def,tied1> = XSMADDMSP %vre...

I've been working on adding support for a (semi-proprietary) extension for PowerPC called "Paired-Singles". It's a SIMD instruction set supporting various operations on a vector of 2 32-bit floating point numbers. The Extension is found in the PowerPC 750CL, modified variants of it are used in the Nintendo GameCube (Gekko), the Nintendo Wii (Broadway) and the Nintendo Wii U