[InstCombine] rename test file, simplify tests, regenerate full checks; NFC

Fast-math is irrelevant for these transforms.

llvm-svn: 342683

2 files changed, 58 insertions, 39 deletions

diff --git a/llvm/test/Transforms/InstCombine/fast-math-scalarization.ll b/llvm/test/Transforms/InstCombine/fast-math-scalarization.ll
deleted file mode 100644
index 406ebebfdd2..00000000000
--- a/llvm/test/Transforms/InstCombine/fast-math-scalarization.ll
+++ /dev/null
@@ -1,39 +0,0 @@
-; RUN: opt -instcombine -S < %s | FileCheck %s
-
-; CHECK-LABEL: test_scalarize_phi
-; CHECK: fmul fast float
-define void @test_scalarize_phi(i32 * %n, float * %inout) {
-entry:
-  %0 = load volatile float, float * %inout, align 4
-  %splat.splatinsert = insertelement <4 x float> undef, float %0, i32 0
-  %splat.splat = shufflevector <4 x float> %splat.splatinsert, <4 x float> undef, <4 x i32> zeroinitializer
-  %splat.splatinsert1 = insertelement <4 x float> undef, float 3.0, i32 0
-  br label %for.cond
-
-for.cond:
-  %x.0 = phi <4 x float> [ %splat.splat, %entry ], [ %mul, %for.body ]
-  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
-  %1 = load i32, i32 * %n, align 4
-  %cmp = icmp ne i32 %i.0, %1
-  br i1 %cmp, label %for.body, label %for.end
-
-for.body:
-  %2 = extractelement <4 x float> %x.0, i32 1
-  store volatile float %2, float * %inout, align 4
-  %mul = fmul fast <4 x float> %x.0, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
-  %inc = add nsw i32 %i.0, 1
-  br label %for.cond
-
-for.end:
-  ret void
-}
-
-; CHECK-LABEL: test_extract_element_fastmath
-; CHECK: fadd fast float
-define float @test_extract_element_fastmath(<4 x float> %x) #0 {
-entry:
-  %add = fadd fast <4 x float> %x, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
-  %0 = extractelement <4 x float> %add, i32 2
-  ret float %0
-}
-
diff --git a/llvm/test/Transforms/InstCombine/scalarization.ll b/llvm/test/Transforms/InstCombine/scalarization.ll
new file mode 100644
index 00000000000..cac1e4dbb03
--- /dev/null
+++ b/llvm/test/Transforms/InstCombine/scalarization.ll
@@ -0,0 +1,58 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt -instcombine -S < %s | FileCheck %s
+
+define void @scalarize_phi(i32 * %n, float * %inout) {
+; CHECK-LABEL: @scalarize_phi(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[T0:%.*]] = load volatile float, float* [[INOUT:%.*]], align 4
+; CHECK-NEXT:    br label [[FOR_COND:%.*]]
+; CHECK:       for.cond:
+; CHECK-NEXT:    [[TMP0:%.*]] = phi float [ [[T0]], [[ENTRY:%.*]] ], [ [[TMP1:%.*]], [[FOR_BODY:%.*]] ]
+; CHECK-NEXT:    [[I_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
+; CHECK-NEXT:    [[T1:%.*]] = load i32, i32* [[N:%.*]], align 4
+; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[I_0]], [[T1]]
+; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_END:%.*]], label [[FOR_BODY]]
+; CHECK:       for.body:
+; CHECK-NEXT:    store volatile float [[TMP0]], float* [[INOUT]], align 4
+; CHECK-NEXT:    [[TMP1]] = fmul float [[TMP0]], 0x4002A3D700000000
+; CHECK-NEXT:    [[INC]] = add nuw nsw i32 [[I_0]], 1
+; CHECK-NEXT:    br label [[FOR_COND]]
+; CHECK:       for.end:
+; CHECK-NEXT:    ret void
+;
+entry:
+  %t0 = load volatile float, float * %inout, align 4
+  %insert = insertelement <4 x float> undef, float %t0, i32 0
+  %splat = shufflevector <4 x float> %insert, <4 x float> undef, <4 x i32> zeroinitializer
+  %insert1 = insertelement <4 x float> undef, float 3.0, i32 0
+  br label %for.cond
+
+for.cond:
+  %x.0 = phi <4 x float> [ %splat, %entry ], [ %mul, %for.body ]
+  %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
+  %t1 = load i32, i32 * %n, align 4
+  %cmp = icmp ne i32 %i.0, %t1
+  br i1 %cmp, label %for.body, label %for.end
+
+for.body:
+  %t2 = extractelement <4 x float> %x.0, i32 1
+  store volatile float %t2, float * %inout, align 4
+  %mul = fmul <4 x float> %x.0, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
+  %inc = add nsw i32 %i.0, 1
+  br label %for.cond
+
+for.end:
+  ret void
+}
+
+define float @extract_element_constant_index(<4 x float> %x) {
+; CHECK-LABEL: @extract_element_constant_index(
+; CHECK-NEXT:    [[R_LHS:%.*]] = extractelement <4 x float> [[X:%.*]], i32 2
+; CHECK-NEXT:    [[R:%.*]] = fadd float [[R_LHS]], 0x4002A3D700000000
+; CHECK-NEXT:    ret float [[R]]
+;
+  %add = fadd <4 x float> %x, <float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000, float 0x4002A3D700000000>
+  %r = extractelement <4 x float> %add, i32 2
+  ret float %r
+}
+