| A | Annotate the assembler output with miscellaneous debugging information.
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| b | Dump after computing branch probabilities | file.14.bp
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| B | Dump after block reordering | file.32.bbro
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| c | Dump after instruction combination | file.19.combine
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| C | Dump after the first if conversion | file.15.ce1
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| d | Dump after delayed branch scheduling | file.34.dbr
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| D | Dump all macro definitions, at the end of preprocessing, in addition to normal output.
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| e | Dump after SSA optimizations | file.04.ssa and file.07.ussa
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| E | Dump after the second if conversion | file.29.ce3
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| f | Dump after control and data flow analysis | file.14.cfg
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| Also dump after life analysis | file.18.life
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| F | Dump after purging "ADDRESSOF" codes | file.10.addressof
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| g | Dump after global register allocation | file.24.greg
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| G | Dump after GCSE | file.11.gcse
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| h | Dump after finalization of EH handling code | file.02.eh
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| i | Dump after sibling call optimizations | file.01.sibling
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| j | Dump after the first jump optimization | file.03.jump
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| k | Dump after conversion from registers to stack | file.31.stack
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| l | Dump after local register allocation | file.23.lreg
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| L | Dump after loop optimization | file.12.loop
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| M | Dump after performing the machine dependent reorganization pass | file.33.mach
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| n | Dump after register renumbering | file.28.rnreg
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| N | Dump after the register move pass | file.21.regmove
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| o | Dump after post-reload optimizations | file.25.postreload
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| r | Dump after RTL generation | file.00.rtl
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| R | Dump after the second scheduling pass | file.30.sched2
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| s | Dump after CSE (including the jump optimization that sometimes follows CSE) | file.09.cse
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| S | Dump after the first scheduling pass | file.22.sched
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| t | Dump after the second CSE pass (including the jump optimization that sometimes follows CSE) | file.17.cse2
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| T | Dump after running tracer | file.16.tracer
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| u | Dump after null pointer elimination pass | file.08.null
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| w | Dump after the second flow pass | file.26.flow2
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| W | Dump after SSA conditional constant propagation | file.05.ssaccp
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| X | Dump after SSA dead code elimination | file.06.ssadce
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| z | Dump after the peephole pass | file.27.peephole2
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| a | Produce all the dumps listed above
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| m | Print statistics on memory usage, at the end of the run, to standard error.
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| p | Annotate the assembler output with a comment indicating which pattern and alternative was used. The length of each instruction is also printed.
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| P | Dump the RTL in the assembler output as a comment before each instruction. Also turns on -dp annotation.
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| v | For each of the other indicated dump files (except for file.00.rtl), dump a representation of the control flow graph suitable for viewing with VCG | file.pass.vcg.
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| x | Just generate RTL for a function instead of compiling it. Usually used with r.
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| y | Dump debugging information during parsing, to standard error.
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