Enable all Hexagon tests.

[oota-llvm.git] / test / CodeGen / X86 / sse-domains.ll

diff --git a/test/CodeGen/X86/sse-domains.ll b/test/CodeGen/X86/sse-domains.ll
index d26d32287e03c8a4a79286d0151dc9d20ce51089..c99287bdfb9f5efaefbc3070c7ac59604798b0f7 100644 (file)
--- a/test/CodeGen/X86/sse-domains.ll
+++ b/test/CodeGen/X86/sse-domains.ll
@@ -1,4 +1,4 @@
-; RUN: llc < %s | FileCheck %s
+; RUN: llc < %s -mcpu=nehalem | FileCheck %s
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
 target triple = "x86_64-apple-macosx10.7"
 
@@ -43,3 +43,45 @@ while.body:
 while.end:
   ret void
 }
+
+; CHECK: f2
+; CHECK: for.body
+;
+; This loop contains two cvtsi2ss instructions that update the same xmm
+; register.  Verify that the execution dependency fix pass breaks those
+; dependencies by inserting xorps instructions.
+;
+; If the register allocator chooses different registers for the two cvtsi2ss
+; instructions, they are still dependent on themselves.
+; CHECK: xorps [[XMM1:%xmm[0-9]+]]
+; CHECK: , [[XMM1]]
+; CHECK: cvtsi2ss %{{.*}}, [[XMM1]]
+; CHECK: xorps [[XMM2:%xmm[0-9]+]]
+; CHECK: , [[XMM2]]
+; CHECK: cvtsi2ss %{{.*}}, [[XMM2]]
+;
+define float @f2(i32 %m) nounwind uwtable readnone ssp {
+entry:
+  %tobool3 = icmp eq i32 %m, 0
+  br i1 %tobool3, label %for.end, label %for.body
+
+for.body:                                         ; preds = %entry, %for.body
+  %m.addr.07 = phi i32 [ %dec, %for.body ], [ %m, %entry ]
+  %s1.06 = phi float [ %add, %for.body ], [ 0.000000e+00, %entry ]
+  %s2.05 = phi float [ %add2, %for.body ], [ 0.000000e+00, %entry ]
+  %n.04 = phi i32 [ %inc, %for.body ], [ 1, %entry ]
+  %conv = sitofp i32 %n.04 to float
+  %add = fadd float %s1.06, %conv
+  %conv1 = sitofp i32 %m.addr.07 to float
+  %add2 = fadd float %s2.05, %conv1
+  %inc = add nsw i32 %n.04, 1
+  %dec = add nsw i32 %m.addr.07, -1
+  %tobool = icmp eq i32 %dec, 0
+  br i1 %tobool, label %for.end, label %for.body
+
+for.end:                                          ; preds = %for.body, %entry
+  %s1.0.lcssa = phi float [ 0.000000e+00, %entry ], [ %add, %for.body ]
+  %s2.0.lcssa = phi float [ 0.000000e+00, %entry ], [ %add2, %for.body ]
+  %sub = fsub float %s1.0.lcssa, %s2.0.lcssa
+  ret float %sub
+}