[clang] [llvm] [X86] EmitX86BuiltinExpr - attempt to convert SSE41/AVX1 roundps/d/ss/sd builtins to regular rounding modes (PR #171227)

[Simon Pilgrim via llvm-commits]

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+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -fms-extensions -fms-compatibility -ffreestanding %s -triple=x86_64-windows-msvc -target-feature +avx -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -fms-extensions -fms-compatibility -ffreestanding %s -triple=x86_64-windows-msvc -target-feature +avx -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefixes=CHECK
+
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c -frounding-math -flax-vector-conversions=none -fms-extensions -fms-compatibility -ffreestanding %s -triple=x86_64-windows-msvc -target-feature +avx -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=x86_64-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -ffreestanding %s -triple=i386-apple-darwin -target-feature +avx -fno-signed-char -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+// RUN: %clang_cc1 -x c++ -frounding-math -flax-vector-conversions=none -fms-extensions -fms-compatibility -ffreestanding %s -triple=x86_64-windows-msvc -target-feature +avx -emit-llvm -o - -Wall -Werror -fexperimental-new-constant-interpreter | FileCheck %s --check-prefixes=CHECK
+
+#include <immintrin.h>
+#include "builtin_test_helpers.h"
+
+__m256d test_mm256_round_pd1(__m256d x) {
----------------
RKSimon wrote:

pleased don't number tests - give them useful names test_mm256_round_pd_nearbyint etc.

https://github.com/llvm/llvm-project/pull/171227