clang/test/CodeGen/X86/sse-builtins-constrained.c

   1 // REQUIRES: x86-registered-target
   2 // RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-unknown-linux-gnu -target-feature +sse -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=UNCONSTRAINED --check-prefix=COMMON --check-prefix=COMMONIR
   3 // RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-unknown-linux-gnu -target-feature +sse -ffp-exception-behavior=maytrap -DSTRICT=1 -emit-llvm -o - -Wall -Werror | FileCheck %s --check-prefix=CONSTRAINED --check-prefix=COMMON --check-prefix=COMMONIR
   4 // RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-unknown-linux-gnu -target-feature +sse -S -o - -Wall -Werror | FileCheck %s --check-prefix=CHECK-ASM --check-prefix=COMMON
   5 // RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-unknown-linux-gnu -target-feature +sse -ffp-exception-behavior=maytrap -DSTRICT=1 -S -o - -Wall -Werror | FileCheck %s --check-prefix=CHECK-ASM --check-prefix=COMMON
   6
   7 #ifdef STRICT
   8 // Test that the constrained intrinsics are picking up the exception
   9 // metadata from the AST instead of the global default from the command line.
  10
  11 #pragma float_control(except, on)
  12 #endif
  13
  14
  15 #include <immintrin.h>
  16
  17 __m128 test_mm_sqrt_ps(__m128 x) {
  18   // COMMON-LABEL: test_mm_sqrt_ps
  19   // UNCONSTRAINED: call <4 x float> @llvm.sqrt.v4f32(<4 x float> {{.*}})
  20   // CONSTRAINED: call <4 x float> @llvm.experimental.constrained.sqrt.v4f32(<4 x float> {{.*}}, metadata !{{.*}})
  21   // CHECK-ASM: sqrtps
  22   return _mm_sqrt_ps(x);
  23 }
  24
  25 __m128 test_sqrt_ss(__m128 x) {
  26   // COMMON-LABEL: test_sqrt_ss
  27   // COMMONIR: extractelement <4 x float> {{.*}}, i64 0
  28   // UNCONSTRAINED: call float @llvm.sqrt.f32(float {{.*}})
  29   // CONSTRAINED: call float @llvm.experimental.constrained.sqrt.f32(float {{.*}}, metadata !{{.*}})
  30   // CHECK-ASM: sqrtss
  31   // COMMONIR: insertelement <4 x float> {{.*}}, float {{.*}}, i64 0
  32   return _mm_sqrt_ss(x);
  33 }
  34