diff options
Diffstat (limited to 'src/cmd/compile/internal/ssa/gen/genericOps.go')
| -rw-r--r-- | src/cmd/compile/internal/ssa/gen/genericOps.go | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/cmd/compile/internal/ssa/gen/genericOps.go b/src/cmd/compile/internal/ssa/gen/genericOps.go index c183aedf2d..984552900f 100644 --- a/src/cmd/compile/internal/ssa/gen/genericOps.go +++ b/src/cmd/compile/internal/ssa/gen/genericOps.go @@ -106,7 +106,7 @@ var genericOps = []opData{ // For shifts, AxB means the shifted value has A bits and the shift amount has B bits. // Shift amounts are considered unsigned. - // If arg1 is known to be less than the number of bits in arg0, + // If arg1 is known to be nonnegative and less than the number of bits in arg0, // then auxInt may be set to 1. // This enables better code generation on some platforms. {name: "Lsh8x8", argLength: 2, aux: "Bool"}, // arg0 << arg1 @@ -417,10 +417,12 @@ var genericOps = []opData{ {name: "ClosureCall", argLength: -1, aux: "CallOff", call: true}, // arg0=code pointer, arg1=context ptr, arg2..argN-1 are register inputs, argN=memory. auxint=arg size. Returns Result of register results, plus memory. {name: "StaticCall", argLength: -1, aux: "CallOff", call: true}, // call function aux.(*obj.LSym), arg0..argN-1 are register inputs, argN=memory. auxint=arg size. Returns Result of register results, plus memory. {name: "InterCall", argLength: -1, aux: "CallOff", call: true}, // interface call. arg0=code pointer, arg1..argN-1 are register inputs, argN=memory, auxint=arg size. Returns Result of register results, plus memory. + {name: "TailCall", argLength: -1, aux: "CallOff", call: true}, // tail call function aux.(*obj.LSym), arg0..argN-1 are register inputs, argN=memory. auxint=arg size. Returns Result of register results, plus memory. {name: "ClosureLECall", argLength: -1, aux: "CallOff", call: true}, // late-expanded closure call. arg0=code pointer, arg1=context ptr, arg2..argN-1 are inputs, argN is mem. auxint = arg size. Result is tuple of result(s), plus mem. {name: "StaticLECall", argLength: -1, aux: "CallOff", call: true}, // late-expanded static call function aux.(*ssa.AuxCall.Fn). arg0..argN-1 are inputs, argN is mem. auxint = arg size. Result is tuple of result(s), plus mem. {name: "InterLECall", argLength: -1, aux: "CallOff", call: true}, // late-expanded interface call. arg0=code pointer, arg1..argN-1 are inputs, argN is mem. auxint = arg size. Result is tuple of result(s), plus mem. + {name: "TailLECall", argLength: -1, aux: "CallOff", call: true}, // late-expanded static tail call function aux.(*ssa.AuxCall.Fn). arg0..argN-1 are inputs, argN is mem. auxint = arg size. Result is tuple of result(s), plus mem. // Conversions: signed extensions, zero (unsigned) extensions, truncations {name: "SignExt8to16", argLength: 1, typ: "Int16"}, @@ -638,7 +640,7 @@ var genericBlocks = []blockData{ {name: "If", controls: 1}, // if Controls[0] goto Succs[0] else goto Succs[1] {name: "Defer", controls: 1}, // Succs[0]=defer queued, Succs[1]=defer recovered. Controls[0] is call op (of memory type) {name: "Ret", controls: 1}, // no successors, Controls[0] value is memory result - {name: "RetJmp", controls: 1}, // no successors, Controls[0] value is memory result, jumps to b.Aux.(*gc.Sym) + {name: "RetJmp", controls: 1}, // no successors, Controls[0] value is a tail call {name: "Exit", controls: 1}, // no successors, Controls[0] value generates a panic // transient block state used for dead code removal |