38637ee477
In the same spirit as D73543 and in reply to https://reviews.llvm.org/D126768#3549920 this patch is adding support for `__builtin_memset_inline`. The idea is to get support from the compiler to easily write efficient memory function implementations. This patch could be split in two: - one for the LLVM part adding the `llvm.memset.inline.*` intrinsics. - and another one for the Clang part providing the instrinsic as a builtin. Differential Revision: https://reviews.llvm.org/D126903
22 lines
1.1 KiB
C
22 lines
1.1 KiB
C
// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py
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// REQUIRES: x86-registered-target
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// RUN: %clang_cc1 -no-opaque-pointers -triple x86_64-unknown-linux -emit-llvm %s -o - | FileCheck %s
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// CHECK-LABEL: define{{.*}} void @test_memset_inline_0(i8* noundef %dst, i8 noundef signext %value)
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void test_memset_inline_0(void *dst, char value) {
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// CHECK: call void @llvm.memset.inline.p0i8.i64(i8* align 1 %0, i8 %2, i64 0, i1 false)
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__builtin_memset_inline(dst, value, 0);
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}
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// CHECK-LABEL: define{{.*}} void @test_memset_inline_1(i8* noundef %dst, i8 noundef signext %value)
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void test_memset_inline_1(void *dst, char value) {
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// CHECK: call void @llvm.memset.inline.p0i8.i64(i8* align 1 %0, i8 %2, i64 1, i1 false)
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__builtin_memset_inline(dst, value, 1);
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}
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// CHECK-LABEL: define{{.*}} void @test_memset_inline_4(i8* noundef %dst, i8 noundef signext %value)
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void test_memset_inline_4(void *dst, char value) {
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// CHECK: call void @llvm.memset.inline.p0i8.i64(i8* align 1 %0, i8 %2, i64 4, i1 false)
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__builtin_memset_inline(dst, value, 4);
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}
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