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
18 lines
1.0 KiB
C
18 lines
1.0 KiB
C
/// Treat -falign-loops=0 as not specifying the option.
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// RUN: %clang -### -falign-loops=0 %s 2>&1 | FileCheck %s --check-prefix=CHECK_NO
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// RUN: %clang -### -falign-loops=1 %s 2>&1 | FileCheck %s --check-prefix=CHECK_1
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// RUN: %clang -### -falign-loops=4 %s 2>&1 | FileCheck %s --check-prefix=CHECK_4
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/// Only powers of 2 are supported for now.
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// RUN: %clang -### -falign-loops=5 %s 2>&1 | FileCheck %s --check-prefix=CHECK_5
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// RUN: %clang -### -falign-loops=65536 %s 2>&1 | FileCheck %s --check-prefix=CHECK_65536
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// RUN: %clang -### -falign-loops=65537 %s 2>&1 | FileCheck %s --check-prefix=CHECK_65537
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// RUN: %clang -### -falign-loops=a %s 2>&1 | FileCheck %s --check-prefix=CHECK_ERR_A
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// CHECK_NO-NOT: "-falign-loops=
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// CHECK_1: "-falign-loops=1"
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// CHECK_4: "-falign-loops=4"
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// CHECK_5: error: alignment is not a power of 2 in '-falign-loops=5'
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// CHECK_65536: "-falign-loops=65536"
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// CHECK_65537: error: invalid integral value '65537' in '-falign-loops=65537'
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// CHECK_ERR_A: error: invalid integral value 'a' in '-falign-loops=a'
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