[X86] Add test case for PR30511 and r282341.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@282473 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/pr30511.ll b/test/CodeGen/X86/pr30511.ll
new file mode 100644 (file)
index 0000000..1999ca2
--- /dev/null
+++ b/test/CodeGen/X86/pr30511.ll
@@ -0,0 +1,23 @@
+; RUN: llc < %s -mtriple=x86_64-pc-linux-gnu | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-linux-gnu"
+
+define i64 @PR30511(<2 x double> %a) {
+; CHECK:       # BB#0:
+; CHECK-NEXT:    addpd {{.*}}(%rip), %xmm0
+; CHECK-NEXT:    pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
+; CHECK-NEXT:    cvtdq2pd %xmm0, %xmm0
+; CHECK-NEXT:    mulpd {{.*}}(%rip), %xmm0
+; CHECK-NEXT:    movd %xmm0, %rax
+; CHECK-NEXT:    retq
+  %1 = fadd <2 x double> %a, <double 0x4338000000000000, double 0x4338000000000000>
+  %2 = bitcast <2 x double> %1 to <2 x i64>
+  %3 = trunc <2 x i64> %2 to <2 x i32>
+  %4 = sitofp <2 x i32> %3 to <2 x double>
+  %5 = fmul <2 x double> %4, <double 0x3E76800000000000, double 0x3E76800000000000>
+  %6 = extractelement <2 x double> %5, i32 0
+  %7 = bitcast double %6 to i64
+  ret i64 %7
+}
+