[LoopVectorize] Precommit tests for D62510. NFC

llvm-svn: 362060

diff --git a/llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll b/llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll
new file mode 100644 (file)
index 0000000..6589871
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/X86/fneg-cost.ll
@@ -0,0 +1,26 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt %s -loop-vectorize -debug-only=loop-vectorize -S 2>&1 | FileCheck %s
+; REQUIRES: asserts
+
+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-macosx10.8.0"
+
+; CHECK: Found an estimated cost of 2 for VF 1 For instruction:   %neg = fneg float %{{.*}}
+; CHECK: Found an estimated cost of 6 for VF 2 For instruction:   %neg = fneg float %{{.*}}
+; CHECK: Found an estimated cost of 14 for VF 4 For instruction:   %neg = fneg float %{{.*}}
+define void @fneg_cost(float* %a, i64 %n) {
+entry:
+  br label %for.body
+for.body:                                         ; preds = %for.body.preheader, %for.body
+  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
+  %arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
+  %0 = load float, float* %arrayidx, align 4
+  %neg = fneg float %0
+  store float %neg, float* %arrayidx, align 4
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  %cmp = icmp eq i64 %indvars.iv.next, %n
+  br i1 %cmp, label %for.end, label %for.body
+
+for.end:
+  ret void
+}

diff --git a/llvm/test/Transforms/LoopVectorize/fneg.ll b/llvm/test/Transforms/LoopVectorize/fneg.ll
new file mode 100644 (file)
index 0000000..8e5e2aa
--- /dev/null
+++ b/llvm/test/Transforms/LoopVectorize/fneg.ll
@@ -0,0 +1,35 @@
+; RUN: opt %s -loop-vectorize -force-vector-interleave=1 -force-vector-width=4 -S | FileCheck %s
+
+define void @foo(float* %a, i64 %n) {
+; CHECK:       vector.body:
+; CHECK:         [[WIDE_LOAD:%.*]] = load <4 x float>, <4 x float>* {{.*}}, align 4
+; CHECK-NEXT:    [[TMP4:%.*]] = extractelement <4 x float> [[WIDE_LOAD]], i32 0
+; CHECK-NEXT:    [[TMP5:%.*]] = fneg float [[TMP4]]
+; CHECK-NEXT:    [[TMP6:%.*]] = extractelement <4 x float> [[WIDE_LOAD]], i32 1
+; CHECK-NEXT:    [[TMP7:%.*]] = fneg float [[TMP6]]
+; CHECK-NEXT:    [[TMP8:%.*]] = extractelement <4 x float> [[WIDE_LOAD]], i32 2
+; CHECK-NEXT:    [[TMP9:%.*]] = fneg float [[TMP8]]
+; CHECK-NEXT:    [[TMP10:%.*]] = extractelement <4 x float> [[WIDE_LOAD]], i32 3
+; CHECK-NEXT:    [[TMP11:%.*]] = fneg float [[TMP10]]
+; CHECK-NEXT:    [[TMP12:%.*]] = insertelement <4 x float> undef, float [[TMP5]], i32 0
+; CHECK-NEXT:    [[TMP13:%.*]] = insertelement <4 x float> [[TMP12]], float [[TMP7]], i32 1
+; CHECK-NEXT:    [[TMP14:%.*]] = insertelement <4 x float> [[TMP13]], float [[TMP9]], i32 2
+; CHECK-NEXT:    [[TMP15:%.*]] = insertelement <4 x float> [[TMP14]], float [[TMP11]], i32 3
+; CHECK:         store <4 x float> [[TMP15]], <4 x float>* {{.*}}, align 4
+;
+entry:
+  br label %for.body
+
+for.body:
+  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
+  %arrayidx = getelementptr inbounds float, float* %a, i64 %indvars.iv
+  %0 = load float, float* %arrayidx, align 4
+  %sub = fneg float %0
+  store float %sub, float* %arrayidx, align 4
+  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
+  %cmp = icmp eq i64 %indvars.iv.next, %n
+  br i1 %cmp, label %for.exit, label %for.body
+
+for.exit:
+  ret void
+}