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authorEddie Hung <eddie@fpgeh.com>2019-08-06 16:42:25 -0700
committerEddie Hung <eddie@fpgeh.com>2019-08-06 16:42:25 -0700
commite38f40af5b7cdd5c8b896ffba17069bd65f01f29 (patch)
treeec5f7fa67819eb54a7318b1e7e005303905bf694 /passes/opt/opt_rmdff.cc
parenta6bc9265fbb2abad73120a068a09f0c7833304de (diff)
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Use IdString::begins_with()
Diffstat (limited to 'passes/opt/opt_rmdff.cc')
-rw-r--r--passes/opt/opt_rmdff.cc16
1 files changed, 8 insertions, 8 deletions
diff --git a/passes/opt/opt_rmdff.cc b/passes/opt/opt_rmdff.cc
index d712736c1..450626f4a 100644
--- a/passes/opt/opt_rmdff.cc
+++ b/passes/opt/opt_rmdff.cc
@@ -63,11 +63,11 @@ bool handle_dffsr(RTLIL::Module *mod, RTLIL::Cell *cell)
log_assert(GetSize(sig_set) == GetSize(sig_clr));
- if (cell->type.substr(0,8) == "$_DFFSR_") {
+ if (cell->type.begins_with("$_DFFSR_")) {
pol_set = cell->type[9] == 'P' ? State::S1 : State::S0;
pol_clr = cell->type[10] == 'P' ? State::S1 : State::S0;
} else
- if (cell->type.substr(0,11) == "$_DLATCHSR_") {
+ if (cell->type.begins_with("$_DLATCHSR_")) {
pol_set = cell->type[12] == 'P' ? State::S1 : State::S0;
pol_clr = cell->type[13] == 'P' ? State::S1 : State::S0;
} else
@@ -198,9 +198,9 @@ bool handle_dffsr(RTLIL::Module *mod, RTLIL::Cell *cell)
{
IdString new_type;
- if (cell->type.substr(0,8) == "$_DFFSR_")
+ if (cell->type.begins_with("$_DFFSR_"))
new_type = stringf("$_DFF_%c_", cell->type[8]);
- else if (cell->type.substr(0,11) == "$_DLATCHSR_")
+ else if (cell->type.begins_with("$_DLATCHSR_"))
new_type = stringf("$_DLATCH_%c_", cell->type[11]);
else
log_abort();
@@ -278,7 +278,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
sig_c = dff->getPort("\\C");
val_cp = RTLIL::Const(dff->type == "$_DFF_P_", 1);
}
- else if (dff->type.substr(0,6) == "$_DFF_" && dff->type.substr(9) == "_" &&
+ else if (dff->type.begins_with("$_DFF_") && dff->type.substr(9) == "_" &&
(dff->type[6] == 'N' || dff->type[6] == 'P') &&
(dff->type[7] == 'N' || dff->type[7] == 'P') &&
(dff->type[8] == '0' || dff->type[8] == '1')) {
@@ -290,7 +290,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
val_rp = RTLIL::Const(dff->type[7] == 'P', 1);
val_rv = RTLIL::Const(dff->type[8] == '1', 1);
}
- else if (dff->type.substr(0,7) == "$_DFFE_" && dff->type.substr(9) == "_" &&
+ else if (dff->type.begins_with("$_DFFE_") && dff->type.substr(9) == "_" &&
(dff->type[7] == 'N' || dff->type[7] == 'P') &&
(dff->type[8] == 'N' || dff->type[8] == 'P')) {
sig_d = dff->getPort("\\D");
@@ -428,7 +428,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
return true;
}
- log_assert(dff->type.substr(0,6) == "$_DFF_");
+ log_assert(dff->type.begins_with("$_DFF_"));
dff->type = stringf("$_DFF_%c_", + dff->type[6]);
dff->unsetPort("\\R");
}
@@ -452,7 +452,7 @@ bool handle_dff(RTLIL::Module *mod, RTLIL::Cell *dff)
return true;
}
- log_assert(dff->type.substr(0,7) == "$_DFFE_");
+ log_assert(dff->type.begins_with("$_DFFE_"));
dff->type = stringf("$_DFF_%c_", + dff->type[7]);
dff->unsetPort("\\E");
}