[PATCH] D67593: [bugpoint] Add support for -Oz and properly enable -Os.
Florian Hahn via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue Sep 17 01:18:01 PDT 2019
This revision was automatically updated to reflect the committed changes.
Closed by commit rL372079: [bugpoint] Add support for -Oz and properly enable -Os. (authored by fhahn, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D67593?vs=220249&id=220443#toc
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D67593/new/
https://reviews.llvm.org/D67593
Files:
llvm/trunk/tools/bugpoint/bugpoint.cpp
Index: llvm/trunk/tools/bugpoint/bugpoint.cpp
===================================================================
--- llvm/trunk/tools/bugpoint/bugpoint.cpp
+++ llvm/trunk/tools/bugpoint/bugpoint.cpp
@@ -81,6 +81,10 @@
"Like -O2 with extra optimizations for size. Similar to clang -Os"));
static cl::opt<bool>
+OptLevelOz("Oz",
+ cl::desc("Like -Os but reduces code size further. Similar to clang -Oz"));
+
+static cl::opt<bool>
OptLevelO3("O3", cl::desc("Optimization level 3. Identical to 'opt -O3'"));
static cl::opt<std::string>
@@ -109,6 +113,26 @@
};
}
+// This routine adds optimization passes based on selected optimization level,
+// OptLevel.
+//
+// OptLevel - Optimization Level
+static void AddOptimizationPasses(legacy::FunctionPassManager &FPM,
+ unsigned OptLevel,
+ unsigned SizeLevel) {
+ PassManagerBuilder Builder;
+ Builder.OptLevel = OptLevel;
+ Builder.SizeLevel = SizeLevel;
+
+ if (OptLevel > 1)
+ Builder.Inliner = createFunctionInliningPass(OptLevel, SizeLevel, false);
+ else
+ Builder.Inliner = createAlwaysInlinerLegacyPass();
+
+ Builder.populateFunctionPassManager(FPM);
+ Builder.populateModulePassManager(FPM);
+}
+
#ifdef LINK_POLLY_INTO_TOOLS
namespace polly {
void initializePollyPasses(llvm::PassRegistry &Registry);
@@ -189,18 +213,16 @@
Builder.populateLTOPassManager(PM);
}
- if (OptLevelO1 || OptLevelO2 || OptLevelO3) {
- PassManagerBuilder Builder;
- if (OptLevelO1)
- Builder.Inliner = createAlwaysInlinerLegacyPass();
- else if (OptLevelOs || OptLevelO2)
- Builder.Inliner = createFunctionInliningPass(
- 2, OptLevelOs ? 1 : 0, false);
- else
- Builder.Inliner = createFunctionInliningPass(275);
- Builder.populateFunctionPassManager(PM);
- Builder.populateModulePassManager(PM);
- }
+ if (OptLevelO1)
+ AddOptimizationPasses(PM, 1, 0);
+ else if (OptLevelO2)
+ AddOptimizationPasses(PM, 2, 0);
+ else if (OptLevelO3)
+ AddOptimizationPasses(PM, 3, 0);
+ else if (OptLevelOs)
+ AddOptimizationPasses(PM, 2, 1);
+ else if (OptLevelOz)
+ AddOptimizationPasses(PM, 2, 2);
for (const PassInfo *PI : PassList)
D.addPass(PI->getPassArgument());
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