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446f66d685
This follows up to SHT_LLVM_LTO (https://reviews.llvm.org/D153215) and resolves the comment of the FatLTO patch https://reviews.llvm.org/D146776#4430626
76 lines
4.3 KiB
C
76 lines
4.3 KiB
C
// REQUIRES: x86-registered-target
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=full -ffat-lto-objects -fsplit-lto-unit -emit-llvm < %s | FileCheck %s --check-prefixes=FULL,SPLIT
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=full -ffat-lto-objects -emit-llvm < %s | FileCheck %s --check-prefixes=FULL,SPLIT
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=thin -fsplit-lto-unit -ffat-lto-objects -emit-llvm < %s | FileCheck %s --check-prefixes=THIN,SPLIT
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=thin -ffat-lto-objects -emit-llvm < %s | FileCheck %s --check-prefixes=THIN,NOSPLIT
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=full -ffat-lto-objects -fsplit-lto-unit -emit-obj < %s -o %t.full.split.o
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// RUN: llvm-readelf -S %t.full.split.o | FileCheck %s --check-prefixes=ELF
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// RUN: llvm-objcopy --dump-section=.llvm.lto=%t.full.split.bc %t.full.split.o
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// RUN: llvm-dis %t.full.split.bc -o - | FileCheck %s --check-prefixes=FULL,SPLIT,NOUNIFIED
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/// Full LTO always sets EnableSplitLTOUnit when the summary is used.
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=full -ffat-lto-objects -emit-obj < %s -o %t.full.nosplit.o
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// RUN: llvm-readelf -S %t.full.nosplit.o | FileCheck %s --check-prefixes=ELF
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// RUN: llvm-objcopy --dump-section=.llvm.lto=%t.full.nosplit.bc %t.full.nosplit.o
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// RUN: llvm-dis %t.full.nosplit.bc -o - | FileCheck %s --check-prefixes=FULL,SPLIT,NOUNIFIED
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=thin -fsplit-lto-unit -ffat-lto-objects -emit-obj < %s -o %t.thin.split.o
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// RUN: llvm-readelf -S %t.thin.split.o | FileCheck %s --check-prefixes=ELF
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// RUN: llvm-objcopy --dump-section=.llvm.lto=%t.thin.split.bc %t.thin.split.o
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// RUN: llvm-dis %t.thin.split.bc -o - | FileCheck %s --check-prefixes=THIN,SPLIT,NOUNIFIED
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=thin -ffat-lto-objects -emit-obj < %s -o %t.thin.nosplit.o
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// RUN: llvm-readelf -S %t.thin.nosplit.o | FileCheck %s --check-prefixes=ELF
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// RUN: llvm-objcopy --dump-section=.llvm.lto=%t.thin.nosplit.bc %t.thin.nosplit.o
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// RUN: llvm-dis %t.thin.nosplit.bc -o - | FileCheck %s --check-prefixes=THIN,NOSPLIT,NOUNIFIED
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=thin -funified-lto -ffat-lto-objects -emit-obj < %s -o %t.unified.o
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// RUN: llvm-readelf -S %t.unified.o | FileCheck %s --check-prefixes=ELF
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// RUN: llvm-objcopy --dump-section=.llvm.lto=%t.unified.bc %t.unified.o
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// RUN: llvm-dis %t.unified.bc -o - | FileCheck %s --check-prefixes=THIN,NOSPLIT,UNIFIED
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// RUN: %clang -cc1 -triple x86_64-unknown-linux-gnu -flto=full -ffat-lto-objects -fsplit-lto-unit -S < %s -o - \
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// RUN: | FileCheck %s --check-prefixes=ASM
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/// Make sure that FatLTO generates .llvm.lto sections that are the same as the output from normal LTO compilations
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// RUN: %clang -O2 --target=x86_64-unknown-linux-gnu -fPIE -flto=full -ffat-lto-objects -c %s -o %t.fatlto.full.o
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// RUN: llvm-objcopy --dump-section=.llvm.lto=%t.fatlto.full.bc %t.fatlto.full.o
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// RUN: llvm-dis < %t.fatlto.full.bc -o %t.fatlto.full.ll
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// RUN: %clang -O2 --target=x86_64-unknown-linux-gnu -fPIE -flto=full -c %s -o %t.nofat.full.bc
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// RUN: llvm-dis < %t.nofat.full.bc -o %t.nofat.full.ll
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// RUN: diff %t.fatlto.full.ll %t.nofat.full.ll
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// RUN: %clang -O2 --target=x86_64-unknown-linux-gnu -fPIE -flto=thin -ffat-lto-objects -c %s -o %t.fatlto.thin.o
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// RUN: llvm-objcopy --dump-section=.llvm.lto=%t.fatlto.thin.bc %t.fatlto.thin.o
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// RUN: llvm-dis < %t.fatlto.thin.bc -o %t.fatlto.thin.ll
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// RUN: %clang -O2 --target=x86_64-unknown-linux-gnu -fPIE -flto=thin -c %s -o %t.nofat.thin.bc
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// RUN: llvm-dis < %t.nofat.thin.bc -o %t.nofat.thin.ll
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// RUN: diff %t.fatlto.thin.ll %t.nofat.thin.ll
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/// Be sure we enable split LTO units correctly under -ffat-lto-objects.
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// SPLIT: ![[#]] = !{i32 1, !"EnableSplitLTOUnit", i32 1}
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// NOSPLIT: ![[#]] = !{i32 1, !"EnableSplitLTOUnit", i32 0}
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// FULL-NOT: ![[#]] = !{i32 1, !"ThinLTO", i32 0}
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// THIN-NOT: ![[#]] = !{i32 1, !"ThinLTO", i32 0}
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// UNIFIED: ![[#]] = !{i32 1, !"UnifiedLTO", i32 1}
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// NOUNIFIED-NOT: ![[#]] = !{i32 1, !"UnifiedLTO", i32 1}
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// ELF: .llvm.lto
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// ASM: .section .llvm.lto,"e",@llvm_lto
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// ASM-NEXT: .Lllvm.embedded.object:
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// ASM-NEXT: .asciz "BC
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// ASM-NEXT: .size .Lllvm.embedded.object
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const char* foo = "foo";
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int test(void) {
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const char* bar = "bar";
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return 0xabcd;
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}
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