https://github.com/RKSimon created
https://github.com/llvm/llvm-project/pull/156061
Update tests to use builtin_test_helpers.h and the TEST_CONSTEXPR helper macro
Partial fix for #155814
>From 84b1e649aa6a6ce27e242bf82c68a668c430a753 Mon Sep 17 00:00:00 2001
From: Simon Pilgrim <llvm-...@redking.me.uk>
Date: Fri, 29 Aug 2025 18:10:43 +0100
Subject: [PATCH] [X86] Add -fexperimental-new-constant-interpreter test
coverage to the BSWAP constexpr test files
Update tests to use builtin_test_helpers.h and the TEST_CONSTEXPR helper macro
Partial fix for #155814
---
clang/test/CodeGen/X86/x86-bswap.c | 30 +++++++++++++-----------------
1 file changed, 13 insertions(+), 17 deletions(-)
diff --git a/clang/test/CodeGen/X86/x86-bswap.c
b/clang/test/CodeGen/X86/x86-bswap.c
index 589dd83606983..8a5baacf55698 100644
--- a/clang/test/CodeGen/X86/x86-bswap.c
+++ b/clang/test/CodeGen/X86/x86-bswap.c
@@ -1,45 +1,41 @@
// RUN: %clang_cc1 -x c -ffreestanding %s -triple=x86_64-apple-darwin
-no-enable-noundef-analysis -emit-llvm -o - | FileCheck %s
// RUN: %clang_cc1 -x c++ -std=c++11 -ffreestanding %s
-triple=x86_64-apple-darwin -no-enable-noundef-analysis -emit-llvm -o - |
FileCheck %s
+// RUN: %clang_cc1 -x c -ffreestanding %s -triple=x86_64-apple-darwin
-no-enable-noundef-analysis -emit-llvm -o -
-fexperimental-new-constant-interpreter | FileCheck %s
+// RUN: %clang_cc1 -x c++ -std=c++11 -ffreestanding %s
-triple=x86_64-apple-darwin -no-enable-noundef-analysis -emit-llvm -o -
-fexperimental-new-constant-interpreter | FileCheck %s
+
+
#include <x86intrin.h>
+#include "builtin_test_helpers.h"
int test__bswapd(int X) {
// CHECK-LABEL: test__bswapd
// CHECK: call i32 @llvm.bswap.i32
return __bswapd(X);
}
+TEST_CONSTEXPR(__bswapd(0x00000000) == 0x00000000);
+TEST_CONSTEXPR(__bswapd(0x01020304) == 0x04030201);
int test_bswap(int X) {
// CHECK-LABEL: test_bswap
// CHECK: call i32 @llvm.bswap.i32
return _bswap(X);
}
+TEST_CONSTEXPR(_bswap(0x00000000) == 0x00000000);
+TEST_CONSTEXPR(_bswap(0x10203040) == 0x40302010);
long test__bswapq(long long X) {
// CHECK-LABEL: test__bswapq
// CHECK: call i64 @llvm.bswap.i64
return __bswapq(X);
}
+TEST_CONSTEXPR(__bswapq(0x0000000000000000ULL) == 0x0000000000000000);
+TEST_CONSTEXPR(__bswapq(0x0102030405060708ULL) == 0x0807060504030201);
long test_bswap64(long long X) {
// CHECK-LABEL: test_bswap64
// CHECK: call i64 @llvm.bswap.i64
return _bswap64(X);
}
-
-// Test constexpr handling.
-#if defined(__cplusplus) && (__cplusplus >= 201103L)
-
-char bswapd_0[__bswapd(0x00000000) == 0x00000000 ? 1 : -1];
-char bswapd_1[__bswapd(0x01020304) == 0x04030201 ? 1 : -1];
-
-char bswap_0[_bswap(0x00000000) == 0x00000000 ? 1 : -1];
-char bswap_1[_bswap(0x10203040) == 0x40302010 ? 1 : -1];
-
-char bswapq_0[__bswapq(0x0000000000000000ULL) == 0x0000000000000000 ? 1 : -1];
-char bswapq_1[__bswapq(0x0102030405060708ULL) == 0x0807060504030201 ? 1 : -1];
-
-char bswap64_0[_bswap64(0x0000000000000000ULL) == 0x0000000000000000 ? 1 : -1];
-char bswap64_1[_bswap64(0x1020304050607080ULL) == 0x8070605040302010 ? 1 : -1];
-
-#endif
+TEST_CONSTEXPR(_bswap64(0x0000000000000000ULL) == 0x0000000000000000);
+TEST_CONSTEXPR(_bswap64(0x1020304050607080ULL) == 0x8070605040302010);
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