c38efb4899
GCC supports multiple forms of -falign-loops=. -falign-loops= is currently ignored in Clang. This patch implements the simplest but the most useful form where N is a power of 2. The underlying implementation uses a `llvm::TargetOptions` option for now. Bitcode generation ignores this option. Differential Revision: https://reviews.llvm.org/D106701
16 lines
470 B
C
16 lines
470 B
C
// REQUIRES: x86-registered-target
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/// Check asm because we use llvm::TargetOptions.
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// RUN: %clang_cc1 -triple=x86_64 -S %s -falign-loops=8 -O -o - | FileCheck %s --check-prefixes=CHECK,CHECK_8
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// RUN: %clang_cc1 -triple=x86_64 -S %s -falign-loops=32 -O -o - | FileCheck %s --check-prefixes=CHECK,CHECK_32
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// CHECK-LABEL: foo:
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// CHECK_8: .p2align 3, 0x90
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// CHECK_32: .p2align 5, 0x90
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void bar();
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void foo() {
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for (int i = 0; i < 64; ++i)
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bar();
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}
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