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Remove dead code related to old backend

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This commit is contained in:
gingerBill
2021-04-28 15:28:14 +01:00
parent e50ef33c2a
commit 71ac145f49
2 changed files with 16 additions and 140 deletions
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src/build_settings.cpp
-61
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@@ -173,8 +173,6 @@ struct BuildContext {
String resource_filepath;
String pdb_filepath;
bool has_resource;
String opt_flags;
String llc_flags;
String link_flags;
String extra_linker_flags;
String microarch;
@@ -806,22 +804,12 @@ void init_build_context(TargetMetrics *cross_target) {
bc->word_size = metrics->word_size;
bc->max_align = metrics->max_align;
bc->link_flags = str_lit(" ");
bc->opt_flags = str_lit(" ");
gbString llc_flags = gb_string_make_reserve(heap_allocator(), 64);
if (bc->ODIN_DEBUG) {
// llc_flags = gb_string_appendc(llc_flags, "-debug-compile ");
}
// NOTE(zangent): The linker flags to set the build architecture are different
// across OSs. It doesn't make sense to allocate extra data on the heap
// here, so I just #defined the linker flags to keep things concise.
if (bc->metrics.arch == TargetArch_amd64) {
if (bc->microarch.len == 0) {
llc_flags = gb_string_appendc(llc_flags, "-march=x86-64 ");
}
switch (bc->metrics.os) {
case TargetOs_windows:
bc->link_flags = str_lit("/machine:x64 ");
@@ -836,10 +824,6 @@ void init_build_context(TargetMetrics *cross_target) {
break;
}
} else if (bc->metrics.arch == TargetArch_386) {
if (bc->microarch.len == 0) {
llc_flags = gb_string_appendc(llc_flags, "-march=x86 ");
}
switch (bc->metrics.os) {
case TargetOs_windows:
bc->link_flags = str_lit("/machine:x86 ");
@@ -856,10 +840,6 @@ void init_build_context(TargetMetrics *cross_target) {
break;
}
} else if (bc->metrics.arch == TargetArch_arm64) {
if (bc->microarch.len == 0) {
llc_flags = gb_string_appendc(llc_flags, "-march=arm64 ");
}
switch (bc->metrics.os) {
case TargetOs_darwin:
bc->link_flags = str_lit("-arch arm64 ");
@@ -872,50 +852,9 @@ void init_build_context(TargetMetrics *cross_target) {
gb_printf_err("Compiler Error: Unsupported architecture\n");;
gb_exit(1);
}
llc_flags = gb_string_appendc(llc_flags, " ");
bc->optimization_level = gb_clamp(bc->optimization_level, 0, 3);
gbString opt_flags = gb_string_make_reserve(heap_allocator(), 64);
if (bc->microarch.len != 0) {
opt_flags = gb_string_appendc(opt_flags, "-march=");
opt_flags = gb_string_append_length(opt_flags, bc->microarch.text, bc->microarch.len);
opt_flags = gb_string_appendc(opt_flags, " ");
// llc_flags = gb_string_appendc(opt_flags, "-march=");
// llc_flags = gb_string_append_length(llc_flags, bc->microarch.text, bc->microarch.len);
// llc_flags = gb_string_appendc(llc_flags, " ");
}
if (bc->optimization_level != 0) {
opt_flags = gb_string_append_fmt(opt_flags, "-O%d ", bc->optimization_level);
// NOTE(lachsinc): The following options were previously passed during call
// to opt in main.cpp:exec_llvm_opt().
// -die: Dead instruction elimination
// -memcpyopt: MemCpy optimization
}
if (bc->ODIN_DEBUG == false) {
opt_flags = gb_string_appendc(opt_flags, "-mem2reg -die ");
}
// NOTE(lachsinc): This optimization option was previously required to get
// around an issue in fmt.odin. Thank bp for tracking it down! Leaving for now until the issue
// is resolved and confirmed by Bill. Maybe it should be readded in non-debug builds.
// if (bc->ODIN_DEBUG == false) {
// opt_flags = gb_string_appendc(opt_flags, "-mem2reg ");
// }
bc->opt_flags = make_string_c(opt_flags);
bc->llc_flags = make_string_c(llc_flags);
#undef LINK_FLAG_X64
#undef LINK_FLAG_386
}