e0bca46b08
This patch adds clang options:
-fbasic-block-sections={all,<filename>,labels,none} and
-funique-basic-block-section-names.
LLVM Support for basic block sections is already enabled.
+ -fbasic-block-sections={all, <file>, labels, none} : Enables/Disables basic
block sections for all or a subset of basic blocks. "labels" only enables
basic block symbols.
+ -funique-basic-block-section-names: Enables unique section names for
basic block sections, disabled by default.
Differential Revision: https://reviews.llvm.org/D68049
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -o - < %s | FileCheck %s --check-prefix=PLAIN
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fbasic-block-sections=all -fbasic-block-sections=none -o - < %s | FileCheck %s --check-prefix=PLAIN
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fbasic-block-sections=labels -o - < %s | FileCheck %s --check-prefix=BB_LABELS
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fbasic-block-sections=all -o - < %s | FileCheck %s --check-prefix=BB_WORLD --check-prefix=BB_ALL
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fbasic-block-sections=list=%S/Inputs/basic-block-sections.funcnames -o - < %s | FileCheck %s --check-prefix=BB_WORLD --check-prefix=BB_LIST
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// RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -S -fbasic-block-sections=all -funique-basic-block-section-names -o - < %s | FileCheck %s --check-prefix=UNIQUE
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int world(int a) {
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if (a > 10)
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return 10;
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else if (a > 5)
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return 5;
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else
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return 0;
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}
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int another(int a) {
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if (a > 10)
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return 20;
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return 0;
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}
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// PLAIN-NOT: section
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// PLAIN: world:
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//
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// BB_LABELS-NOT: section
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// BB_LABELS: world:
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// BB_LABELS: a.BB.world:
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// BB_LABELS: aa.BB.world:
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// BB_LABELS: a.BB.another:
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//
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// BB_WORLD: .section .text.world,"ax",@progbits{{$}}
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// BB_WORLD: world:
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// BB_WORLD: .section .text.world,"ax",@progbits,unique
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// BB_WORLD: world.1:
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// BB_WORLD: .section .text.another,"ax",@progbits
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// BB_ALL: .section .text.another,"ax",@progbits,unique
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// BB_ALL: another.1:
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// BB_LIST-NOT: .section .text.another,"ax",@progbits,unique
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// BB_LIST: another:
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// BB_LIST-NOT: another.1:
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//
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// UNIQUE: .section .text.world.world.1,
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// UNIQUE: .section .text.another.another.1,
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