Created
July 14, 2017 18:45
-
-
Save pftbest/5b9fb3202d69654ca23da3abc5436c8a to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| $ ./llvm-build/bin/llc func.ll -debug-only=isel | |
| === foo | |
| Initial selection DAG: BB#0 'foo:start' | |
| SelectionDAG has 9 nodes: | |
| t2: i16 = Constant<0> | |
| t0: ch = EntryToken | |
| t4: i32,ch = load<LD4[@bar](align=2)(dereferenceable)> t0, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t6: i32 = add t4, Constant:i32<1> | |
| t7: ch = store<ST4[@bar](align=2)> t4:1, t6, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t8: ch = MSP430ISD::RET_FLAG t7 | |
| Optimized lowered selection DAG: BB#0 'foo:start' | |
| SelectionDAG has 8 nodes: | |
| t0: ch = EntryToken | |
| t4: i32,ch = load<LD4[@bar](align=2)(dereferenceable)> t0, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t6: i32 = add t4, Constant:i32<1> | |
| t7: ch = store<ST4[@bar](align=2)> t4:1, t6, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t8: ch = MSP430ISD::RET_FLAG t7 | |
| Type-legalized selection DAG: BB#0 'foo:start' | |
| SelectionDAG has 15 nodes: | |
| t0: ch = EntryToken | |
| t11: i16,ch = load<LD2[@bar](dereferenceable)> t0, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t14: i16,ch = load<LD2[@bar+2](dereferenceable)> t0, GlobalAddress:i16<i32* @bar> + 2, undef:i16 | |
| t15: ch = TokenFactor t11:1, t14:1 | |
| t16: i16,glue = addc t11, Constant:i16<1> | |
| t18: ch = store<ST2[@bar]> t15, t16, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t17: i16,glue = adde t14, Constant:i16<0>, t16:1 | |
| t19: ch = store<ST2[@bar+2]> t15, t17, GlobalAddress:i16<i32* @bar> + 2, undef:i16 | |
| t20: ch = TokenFactor t18, t19 | |
| t8: ch = MSP430ISD::RET_FLAG t20 | |
| Optimized type-legalized selection DAG: BB#0 'foo:start' | |
| SelectionDAG has 17 nodes: | |
| t0: ch = EntryToken | |
| t11: i16,ch = load<LD2[@bar](dereferenceable)> t0, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t14: i16,ch = load<LD2[@bar+2](dereferenceable)> t0, GlobalAddress:i16<i32* @bar> + 2, undef:i16 | |
| t15: ch = TokenFactor t11:1, t14:1 | |
| t16: i16,glue = addc t11, Constant:i16<1> | |
| t23: ch = store<ST2[@bar]> t11:1, t16, GlobalAddress:i16<i32* @bar> 0, undef:i16 | |
| t24: ch = TokenFactor t15, t23 | |
| t17: i16,glue = adde t14, Constant:i16<0>, t16:1 | |
| t21: ch = store<ST2[@bar+2]> t14:1, t17, GlobalAddress:i16<i32* @bar> + 2, undef:i16 | |
| t22: ch = TokenFactor t15, t21 | |
| t20: ch = TokenFactor t24, t22 | |
| t8: ch = MSP430ISD::RET_FLAG t20 | |
| Legalized selection DAG: BB#0 'foo:start' | |
| SelectionDAG has 19 nodes: | |
| t0: ch = EntryToken | |
| t11: i16,ch = load<LD2[@bar](dereferenceable)> t0, t28, undef:i16 | |
| t14: i16,ch = load<LD2[@bar+2](dereferenceable)> t0, t26, undef:i16 | |
| t16: i16,glue = addc t11, Constant:i16<1> | |
| t15: ch = TokenFactor t11:1, t14:1 | |
| t26: i16 = MSP430ISD::Wrapper TargetGlobalAddress:i16<i32* @bar> + 2 | |
| t28: i16 = MSP430ISD::Wrapper TargetGlobalAddress:i16<i32* @bar> 0 | |
| t23: ch = store<ST2[@bar]> t11:1, t16, t28, undef:i16 | |
| t24: ch = TokenFactor t15, t23 | |
| t17: i16,glue = adde t14, Constant:i16<0>, t16:1 | |
| t21: ch = store<ST2[@bar+2]> t14:1, t17, t26, undef:i16 | |
| t22: ch = TokenFactor t15, t21 | |
| t20: ch = TokenFactor t24, t22 | |
| t8: ch = MSP430ISD::RET_FLAG t20 | |
| Optimized legalized selection DAG: BB#0 'foo:start' | |
| SelectionDAG has 16 nodes: | |
| t0: ch = EntryToken | |
| t11: i16,ch = load<LD2[@bar](dereferenceable)> t0, t28, undef:i16 | |
| t14: i16,ch = load<LD2[@bar+2](dereferenceable)> t0, t26, undef:i16 | |
| t16: i16,glue = addc t11, Constant:i16<1> | |
| t26: i16 = MSP430ISD::Wrapper TargetGlobalAddress:i16<i32* @bar> + 2 | |
| t28: i16 = MSP430ISD::Wrapper TargetGlobalAddress:i16<i32* @bar> 0 | |
| t23: ch = store<ST2[@bar]> t11:1, t16, t28, undef:i16 | |
| t17: i16,glue = adde t14, Constant:i16<0>, t16:1 | |
| t21: ch = store<ST2[@bar+2]> t14:1, t17, t26, undef:i16 | |
| t30: ch = TokenFactor t23, t21 | |
| t8: ch = MSP430ISD::RET_FLAG t30 | |
| ===== Instruction selection begins: BB#0 'start' | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ISEL: Starting pattern match on root node: t8: ch = MSP430ISD::RET_FLAG t30 | |
| Morphed node: t8: ch = RET t30 | |
| ISEL: Match complete! | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ISEL: Starting pattern match on root node: t21: ch = store<ST2[@bar+2]> t14:1, t17, t26, undef:i16 | |
| Initial Opcode index to 5 | |
| OpcodeSwitch from 11 to 1062 | |
| Match failed at index 1084 | |
| Continuing at 1220 | |
| TypeSwitch[i16] from 1229 to 1259 | |
| Match failed at index 1260 | |
| Continuing at 1285 | |
| Match failed at index 1286 | |
| Continuing at 1311 | |
| Match failed at index 1315 | |
| Continuing at 1337 | |
| Continuing at 1338 | |
| Continuing at 1339 | |
| Match failed at index 1342 | |
| Continuing at 1406 | |
| Continuing at 3174 | |
| Match failed at index 3179 | |
| Continuing at 3228 | |
| Match failed at index 3229 | |
| Continuing at 3248 | |
| Morphed node: t21: ch = MOV16mr<Mem:ST2[@bar+2]> Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> + 2, t17, t14:1 | |
| ISEL: Match complete! | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ISEL: Starting pattern match on root node: t17: i16,glue = adde t14, Constant:i16<0>, t16:1 | |
| Initial Opcode index to 4741 | |
| Match failed at index 4746 | |
| Continuing at 4792 | |
| TypeSwitch[i16] from 4807 to 4826 | |
| Morphed node: t17: i16,i16,ch,glue = ADC16rm<Mem:LD2[@bar+2](dereferenceable)> Constant:i16<0>, Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> + 2, t0, t16:1 | |
| ISEL: Match complete! | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ISEL: Starting pattern match on root node: t23: ch = store<ST2[@bar]> t11:1, t16, t28, undef:i16 | |
| Initial Opcode index to 5 | |
| OpcodeSwitch from 11 to 2533 | |
| Match failed at index 2543 | |
| Continuing at 2809 | |
| Match failed at index 2812 | |
| Continuing at 2876 | |
| Continuing at 3174 | |
| Match failed at index 3179 | |
| Continuing at 3228 | |
| Match failed at index 3229 | |
| Continuing at 3248 | |
| Morphed node: t23: ch = MOV16mr<Mem:ST2[@bar]> Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> 0, t16, t11:1 | |
| ISEL: Match complete! | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ISEL: Starting pattern match on root node: t16: i16,glue = addc t11, Constant:i16<1> | |
| Initial Opcode index to 5476 | |
| Match failed at index 5480 | |
| Continuing at 5526 | |
| TypeSwitch[i16] from 5541 to 5544 | |
| Morphed node: t16: i16,i16,ch,glue = ADD16rm<Mem:LD2[@bar](dereferenceable)> Constant:i16<1>, Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> 0, t0 | |
| ISEL: Match complete! | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ISEL: Starting pattern match on root node: t10: i16 = Constant<0> | |
| Initial Opcode index to 6093 | |
| TypeSwitch[i16] from 6094 to 6108 | |
| Morphed node: t10: i16 = MOV16ri TargetConstant:i16<0> | |
| ISEL: Match complete! | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ISEL: Starting pattern match on root node: t9: i16 = Constant<1> | |
| Initial Opcode index to 6093 | |
| TypeSwitch[i16] from 6094 to 6108 | |
| Morphed node: t9: i16 = MOV16ri TargetConstant:i16<1> | |
| ISEL: Match complete! | |
| ZZZ SelectCodeCommon, table size: 6348 | |
| ===== Instruction selection ends: | |
| Selected selection DAG: BB#0 'foo:start' | |
| SelectionDAG has 14 nodes: | |
| t0: ch = EntryToken | |
| t9: i16 = MOV16ri TargetConstant:i16<1> | |
| t16: i16,i16,ch,glue = ADD16rm<Mem:LD2[@bar](dereferenceable)> t9, Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> 0, t0 | |
| t10: i16 = MOV16ri TargetConstant:i16<0> | |
| t17: i16,i16,ch,glue = ADC16rm<Mem:LD2[@bar+2](dereferenceable)> t10, Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> + 2, t0, t16:3 | |
| t23: ch = MOV16mr<Mem:ST2[@bar]> Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> 0, t16, t16:2 | |
| t21: ch = MOV16mr<Mem:ST2[@bar+2]> Register:i16 %noreg, TargetGlobalAddress:i16<i32* @bar> + 2, t17, t17:2 | |
| t30: ch = TokenFactor t23, t21 | |
| t8: ch = RET t30 | |
| Total amount of phi nodes to update: 0 | |
| *** MachineFunction at end of ISel *** | |
| # Machine code for function foo: IsSSA, TracksLiveness | |
| BB#0: derived from LLVM BB %start | |
| %vreg0<def> = MOV16ri 1; GR16:%vreg0 | |
| %vreg1<def> = MOV16ri 0; GR16:%vreg1 | |
| %vreg2<def,tied1> = ADD16rm %vreg0<tied0>, %noreg, <ga:@bar>, %SR<imp-def>; mem:LD2[@bar](dereferenceable) GR16:%vreg2,%vreg0 | |
| %vreg3<def,tied1> = ADC16rm %vreg1<tied0>, %noreg, <ga:@bar+2>, %SR<imp-def,dead>, %SR<imp-use>; mem:LD2[@bar+2](dereferenceable) GR16:%vreg3,%vreg1 | |
| MOV16mr %noreg, <ga:@bar+2>, %vreg3<kill>; mem:ST2[@bar+2] GR16:%vreg3 | |
| MOV16mr %noreg, <ga:@bar>, %vreg2<kill>; mem:ST2[@bar] GR16:%vreg2 | |
| RET | |
| # End machine code for function foo. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment