gistfile1.txt

localhost:~ tjfontaine$ clang -O1 -mllvm -debug-pass=Arguments t.c
t.c:4:13: warning: implicitly declaring library function 'malloc' with type 'void *(unsigned long)'
  void *f = malloc(0);
            ^
t.c:4:13: note: please include the header <stdlib.h> or explicitly provide a declaration for 'malloc'
t.c:5:3: warning: implicit declaration of function 'free' is invalid in C99 [-Wimplicit-function-declaration]
  free(f);
  ^
Pass Arguments:  -targetdata -targetlibinfo -no-aa -tbaa -basicaa -simplifycfg -domtree -scalarrepl -early-cse -lower-expect
Pass Arguments:  -targetdata -targetlibinfo -no-aa -tbaa -basicaa -globalopt -ipsccp -deadargelim -instcombine -simplifycfg -basiccg -prune-eh -always-inline -functionattrs -scalarrepl-ssa -domtree -early-cse -simplify-libcalls -lazy-value-info -jump-threading -correlated-propagation -simplifycfg -instcombine -tailcallelim -simplifycfg -reassociate -domtree -loops -loop-simplify -lcssa -loop-rotate -licm -lcssa -loop-unswitch -instcombine -scalar-evolution -loop-simplify -lcssa -indvars -loop-idiom -loop-deletion -memdep -memcpyopt -sccp -instcombine -lazy-value-info -jump-threading -correlated-propagation -domtree -memdep -dse -adce -simplifycfg -instcombine -strip-dead-prototypes
Pass Arguments:  -targetdata -targetlibinfo -targetpassconfig -no-aa -tbaa -basicaa -collector-metadata -machinemoduleinfo -machine-branch-prob -domtree -loops -loop-simplify -scalar-evolution -loop-simplify -iv-users -loop-reduce -gc-lowering -unreachableblockelim -codegenprepare -stack-protector -domtree -loops -branch-prob -expand-isel-pseudos -tailduplication -opt-phis -machinedomtree -slotindexes -stack-coloring -localstackalloc -dead-mi-elimination -machinedomtree -machine-loops -machinelicm -machine-cse -machine-sink -peephole-opts -processimpdefs -unreachable-mbb-elimination -livevars -phi-node-elimination -twoaddressinstruction -slotindexes -liveintervals -livedebugvars -simple-register-coalescing -livestacks -calcspillweights -virtregmap -liveregmatrix -edge-bundles -spill-code-placement -virtregrewriter -stack-slot-coloring -machinelicm -edge-bundles -prologepilog -branch-folder -tailduplication -machine-cp -postrapseudos -machinedomtree -machine-loops -post-RA-sched -gc-analysis -machine-block-freq -block-placement2
2 warnings generated.
localhost:~ tjfontaine$ clang -O2 -mllvm -debug-pass=Arguments t.c
t.c:4:13: warning: implicitly declaring library function 'malloc' with type 'void *(unsigned long)'
  void *f = malloc(0);
            ^
t.c:4:13: note: please include the header <stdlib.h> or explicitly provide a declaration for 'malloc'
t.c:5:3: warning: implicit declaration of function 'free' is invalid in C99 [-Wimplicit-function-declaration]
  free(f);
  ^
Pass Arguments:  -targetdata -targetlibinfo -no-aa -tbaa -basicaa -simplifycfg -domtree -scalarrepl -early-cse -lower-expect
Pass Arguments:  -targetdata -targetlibinfo -no-aa -tbaa -basicaa -globalopt -ipsccp -deadargelim -instcombine -simplifycfg -basiccg -prune-eh -inline -functionattrs -scalarrepl-ssa -domtree -early-cse -simplify-libcalls -lazy-value-info -jump-threading -correlated-propagation -simplifycfg -instcombine -tailcallelim -simplifycfg -reassociate -domtree -loops -loop-simplify -lcssa -loop-rotate -licm -lcssa -loop-unswitch -instcombine -scalar-evolution -loop-simplify -lcssa -indvars -loop-idiom -loop-deletion -loop-unroll -memdep -gvn -memdep -memcpyopt -sccp -instcombine -lazy-value-info -jump-threading -correlated-propagation -domtree -memdep -dse -adce -simplifycfg -instcombine -strip-dead-prototypes -globaldce -constmerge
Pass Arguments:  -targetdata -targetlibinfo -targetpassconfig -no-aa -tbaa -basicaa -collector-metadata -machinemoduleinfo -machine-branch-prob -domtree -loops -loop-simplify -scalar-evolution -loop-simplify -iv-users -loop-reduce -gc-lowering -unreachableblockelim -codegenprepare -stack-protector -domtree -loops -branch-prob -expand-isel-pseudos -tailduplication -opt-phis -machinedomtree -slotindexes -stack-coloring -localstackalloc -dead-mi-elimination -machinedomtree -machine-loops -machinelicm -machine-cse -machine-sink -peephole-opts -processimpdefs -unreachable-mbb-elimination -livevars -phi-node-elimination -twoaddressinstruction -slotindexes -liveintervals -livedebugvars -simple-register-coalescing -livestacks -calcspillweights -virtregmap -liveregmatrix -edge-bundles -spill-code-placement -virtregrewriter -stack-slot-coloring -machinelicm -edge-bundles -prologepilog -branch-folder -tailduplication -machine-cp -postrapseudos -machinedomtree -machine-loops -post-RA-sched -gc-analysis -machine-block-freq -block-placement2
2 warnings generated.