search for: r0h

...lowing intervals for %vreg64: %vreg64 = [288d,304d:1)[304d,320d:0) 0 at 304d 1 at 288d Later %vreg6 and %vreg64 are merged. The register allocator spills %vreg6 (fi#14) and the resulting code is %r0l<def> = mv_any16 65535 Store32FI %r0<kill>, <fi#14>; mem:ST4[FixedStack14] %r0h<def> = mv_any16 16383 %r1<def> = Load32FI <fi#14>; mem:LD4[FixedStack14] So the whole %r0 register is spilled to the stack after only one half is written, and then what is supposed to go into the other half is never used. Instead the previously written value is reloaded from t...

Hi everyone, I'm looking through codes related to registered pressure tracking, mainly the source files 'RegisterPressure.h/cpp', 'MachineRegisterInfo.h/cpp', 'TargetRegisterInfo.h/cpp'. There is a concept I can hardly understand, the 'register pressure set'. Class 'TargetRegisterInfo' defines two virtual methods 'getRegClassPressureSets' and

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