f195d5278f
This PR migrates support for wide string literals from the incubator to upstream. ## Changes - Implement wide string literal support in `getConstantArrayFromStringLiteral` - Handle wchar_t, char16_t, and char32_t string literals - Collect code units and create constant arrays with IntAttr elements - Use ZeroAttr for null-filled strings ## Testing - Copied `wide-string.cpp` test file from incubator - Expanded test to include wchar_t test cases (incubator only had char16_t and char32_t) - All tests pass --------- Co-authored-by: Andy Kaylor <akaylor@nvidia.com>
64 lines
3.3 KiB
C++
64 lines
3.3 KiB
C++
// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir
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// RUN: FileCheck --check-prefix=CIR --input-file=%t.cir %s
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// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll
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// RUN: FileCheck --check-prefix=LLVM --input-file=%t-cir.ll %s
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// RUN: %clang_cc1 -std=c++17 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll
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// RUN: FileCheck --check-prefix=OGCG --input-file=%t.ll %s
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// Test with built-in char16_t type
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const char16_t *test_utf16() {
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return u"你好世界";
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}
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// CIR: cir.global "private" constant cir_private dso_local @{{.+}} = #cir.const_array<[#cir.int<20320> : !u16i, #cir.int<22909> : !u16i, #cir.int<19990> : !u16i, #cir.int<30028> : !u16i, #cir.int<0> : !u16i]> : !cir.array<!u16i x 5>
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// LLVM: @{{.+}} = private constant [5 x i16] [i16 20320, i16 22909, i16 19990, i16 30028, i16 0]
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// OGCG: @{{.+}} = private unnamed_addr constant [5 x i16] [i16 20320, i16 22909, i16 19990, i16 30028, i16 0]
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const char32_t *test_utf32() {
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return U"你好世界";
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}
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// CIR: cir.global "private" constant cir_private dso_local @{{.+}} = #cir.const_array<[#cir.int<20320> : !u32i, #cir.int<22909> : !u32i, #cir.int<19990> : !u32i, #cir.int<30028> : !u32i, #cir.int<0> : !u32i]> : !cir.array<!u32i x 5>
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// LLVM: @{{.+}} = private constant [5 x i32] [i32 20320, i32 22909, i32 19990, i32 30028, i32 0]
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// OGCG: @{{.+}} = private unnamed_addr constant [5 x i32] [i32 20320, i32 22909, i32 19990, i32 30028, i32 0]
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const char16_t *test_zero16() {
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return u"\0\0\0\0";
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}
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// CIR: cir.global "private" constant cir_private dso_local @{{.+}} = #cir.zero : !cir.array<!u16i x 5>
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// LLVM: @{{.+}} = private constant [5 x i16] zeroinitializer
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// OGCG: @{{.+}} = private unnamed_addr constant [5 x i16] zeroinitializer
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const char32_t *test_zero32() {
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return U"\0\0\0\0";
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}
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// CIR: cir.global "private" constant cir_private dso_local @{{.+}} = #cir.zero : !cir.array<!u32i x 5>
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// LLVM: @{{.+}} = private constant [5 x i32] zeroinitializer
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// OGCG: @{{.+}} = private unnamed_addr constant [5 x i32] zeroinitializer
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const wchar_t *test_wchar() {
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return L"1234";
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}
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// CIR: cir.global "private" constant cir_private dso_local @{{.+}} = #cir.const_array<[#cir.int<49> : !s32i, #cir.int<50> : !s32i, #cir.int<51> : !s32i, #cir.int<52> : !s32i, #cir.int<0> : !s32i]> : !cir.array<!s32i x 5>
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// LLVM: @{{.+}} = private constant [5 x i32] [i32 49, i32 50, i32 51, i32 52, i32 0]
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// OGCG: @{{.+}} = private unnamed_addr constant [5 x i32] [i32 49, i32 50, i32 51, i32 52, i32 0]
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const wchar_t *test_wchar_zero() {
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return L"";
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}
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// CIR: cir.global "private" constant cir_private dso_local @{{.+}} = #cir.zero : !cir.array<!s32i x 1>
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// LLVM: @{{.+}} = private constant [1 x i32] zeroinitializer
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// OGCG: @{{.+}} = private unnamed_addr constant [1 x i32] zeroinitializer
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const char16_t *test_char16_typedef() {
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return u"test";
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}
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// CIR: cir.global "private" constant cir_private dso_local @{{.+}} = #cir.const_array<[#cir.int<116> : !u16i, #cir.int<101> : !u16i, #cir.int<115> : !u16i, #cir.int<116> : !u16i, #cir.int<0> : !u16i]> : !cir.array<!u16i x 5>
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// LLVM: @{{.+}} = private constant [5 x i16] [i16 116, i16 101, i16 115, i16 116, i16 0]
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// OGCG: @{{.+}} = private unnamed_addr constant [5 x i16] [i16 116, i16 101, i16 115, i16 116, i16 0]
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