Config->SoName = getString(Args, OPT_soname);
Config->Sysroot = getString(Args, OPT_sysroot);
- Config->Optimize = getInteger(Args, OPT_O, 0);
+ Config->Optimize = getInteger(Args, OPT_O, 1);
Config->LtoO = getInteger(Args, OPT_lto_O, 2);
if (Config->LtoO > 3)
error("invalid optimization level for LTO: " + getString(Args, OPT_lto_O));
template <class ELFT> static bool shouldMerge(const typename ELFT::Shdr &Sec) {
typedef typename ELFT::uint uintX_t;
+
+ // We don't merge sections if -O0 (default is -O1). This makes sometimes
+ // the linker significantly faster, although the output will be bigger.
+ if (Config->Optimize == 0)
+ return false;
+
uintX_t Flags = Sec.sh_flags;
if (!(Flags & SHF_MERGE))
return false;
// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck %s
// RUN: ld.lld -O1 %t.o -o %t.so -shared
// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOTAIL %s
+// RUN: ld.lld -O0 %t.o -o %t.so -shared
+// RUN: llvm-readobj -s -section-data -t %t.so | FileCheck --check-prefix=NOMERGE %s
.section .rodata.str1.1,"aMS",@progbits,1
.asciz "abc"
// NOTAIL-NEXT: 0000: 61626300 626300 |abc.bc.|
// NOTAIL-NEXT: )
+// NOMERGE: Name: .rodata
+// NOMERGE-NEXT: Type: SHT_PROGBITS
+// NOMERGE-NEXT: Flags [
+// NOMERGE-NEXT: SHF_ALLOC
+// NOMERGE-NEXT: SHF_MERGE
+// NOMERGE-NEXT: SHF_STRINGS
+// NOMERGE-NEXT: ]
+// NOMERGE-NEXT: Address: 0x1C8
+// NOMERGE-NEXT: Offset: 0x1C8
+// NOMERGE-NEXT: Size: 16
+// NOMERGE-NEXT: Link: 0
+// NOMERGE-NEXT: Info: 0
+// NOMERGE-NEXT: AddressAlignment: 2
+// NOMERGE-NEXT: EntrySize: 0
+// NOMERGE-NEXT: SectionData (
+// NOMERGE-NEXT: 0000: 61626300 61626300 62630000 14000000 |abc.abc.bc......|
+// NOMERGE-NEXT: )
+
// CHECK: Name: .rodata
// CHECK-NEXT: Type: SHT_PROGBITS
// CHECK-NEXT: Flags [