clang/test/CodeGen/pr34021.c

   1 // REQUIRES: x86-registered-target
   2 // RUN: %clang_cc1 -fms-extensions %s -triple=i686-unknown-unknown -emit-llvm -o - | FileCheck %s --check-prefix=X86
   3 // RUN: %clang_cc1 -fms-extensions %s -triple=x86_64-unknown-unknown -emit-llvm -o - | FileCheck %s --check-prefix=X64
   4
   5 typedef int v4si __attribute__ ((vector_size (16)));
   6 v4si rep(void) {
   7 // X86-LABEL: define{{.*}} <4 x i32> @rep
   8 // X86: %[[ALLOCA0:.*]] = alloca <4 x i32>, align 16
   9 // X86: %[[ALLOCA1:.*]] = alloca <4 x i32>, align 16
  10 // X86: %[[ASM:.*]] = call i64 asm sideeffect inteldialect "", "=A,~{dirflag},~{fpsr},~{flags}"()
  11 // X86: %[[ZEXT:.*]] = zext i64 %[[ASM]] to i128
  12 // X86: store i128 %[[ZEXT]], ptr %[[ALLOCA0]], align 16
  13 // X86: %[[LOAD:.*]] = load <4 x i32>, ptr %[[ALLOCA1]], align 16
  14 // X86: ret <4 x i32> %[[LOAD]]
  15 //
  16 // X64-LABEL: define{{.*}} <4 x i32> @rep
  17 // X64: %[[ALLOCA:.*]] = alloca <4 x i32>, align 16
  18 // X64: call void asm sideeffect inteldialect "", "~{dirflag},~{fpsr},~{flags}"()
  19 // X64: %[[LOAD:.*]] = load <4 x i32>, ptr %[[ALLOCA]], align 16
  20 // X64: ret <4 x i32> %[[LOAD]]
  21   v4si res;
  22   __asm {}
  23   return res;
  24 }