From f7f8459062be4b71df1156d9206a80dfe6dc7537 Mon Sep 17 00:00:00 2001
From: Chad Rosier <mcrosier@codeaurora.org>
Date: Tue, 6 Oct 2015 17:54:12 +0000
Subject: [PATCH] [ARM] Simplify tests and make checks more rigid. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@249432 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/ARM/vcvt_combine.ll | 103 +++++++++++--------------------
 1 file changed, 36 insertions(+), 67 deletions(-)

diff --git a/test/CodeGen/ARM/vcvt_combine.ll b/test/CodeGen/ARM/vcvt_combine.ll
index 0c856e8d761..9a8f084d230 100644
--- a/test/CodeGen/ARM/vcvt_combine.ll
+++ b/test/CodeGen/ARM/vcvt_combine.ll
@@ -1,95 +1,64 @@
 ; RUN: llc < %s -mtriple=armv7-apple-ios | FileCheck %s
 
-@in = global float 0x400921FA00000000, align 4
-
 ; Test signed conversion.
-; CHECK: t0
-; CHECK-NOT: vmul
-define void @t0() nounwind {
-entry:
-  %tmp = load float, float* @in, align 4
-  %vecinit.i = insertelement <2 x float> undef, float %tmp, i32 0
-  %vecinit2.i = insertelement <2 x float> %vecinit.i, float %tmp, i32 1
-  %mul.i = fmul <2 x float> %vecinit2.i, <float 8.000000e+00, float 8.000000e+00>
+; CHECK-LABEL: @t0
+; CHECK: vcvt.s32.f32 d{{[0-9]+}}, d{{[0-9]+}}, #2
+; CHECK: bx lr
+define <2 x i32> @t0(<2 x float> %in) {
+  %mul.i = fmul <2 x float> %in, <float 4.0, float 4.0>
   %vcvt.i = fptosi <2 x float> %mul.i to <2 x i32>
-  tail call void @foo_int32x2_t(<2 x i32> %vcvt.i) nounwind
-  ret void
+  ret <2 x i32> %vcvt.i
 }
 
-declare void @foo_int32x2_t(<2 x i32>)
-
 ; Test unsigned conversion.
-; CHECK: t1
-; CHECK-NOT: vmul
-define void @t1() nounwind {
-entry:
-  %tmp = load float, float* @in, align 4
-  %vecinit.i = insertelement <2 x float> undef, float %tmp, i32 0
-  %vecinit2.i = insertelement <2 x float> %vecinit.i, float %tmp, i32 1
-  %mul.i = fmul <2 x float> %vecinit2.i, <float 8.000000e+00, float 8.000000e+00>
+; CHECK-LABEL: @t1
+; CHECK: vcvt.u32.f32 d{{[0-9]+}}, d{{[0-9]+}}, #3
+; CHECK: bx lr
+define <2 x i32> @t1(<2 x float> %in) {
+  %mul.i = fmul <2 x float> %in, <float 8.0, float 8.0>
   %vcvt.i = fptoui <2 x float> %mul.i to <2 x i32>
-  tail call void @foo_uint32x2_t(<2 x i32> %vcvt.i) nounwind
-  ret void
+  ret <2 x i32> %vcvt.i
 }
 
-declare void @foo_uint32x2_t(<2 x i32>)
-
 ; Test which should not fold due to non-power of 2.
-; CHECK: t2
+; CHECK-LABEL: @t2
 ; CHECK: vmul
-define void @t2() nounwind {
+; CHECK: vcvt.s32.f32 d{{[0-9]+}}, d{{[0-9]+}}
+; CHECK: bx lr
+define <2 x i32> @t2(<2 x float> %in) {
 entry:
-  %tmp = load float, float* @in, align 4
-  %vecinit.i = insertelement <2 x float> undef, float %tmp, i32 0
-  %vecinit2.i = insertelement <2 x float> %vecinit.i, float %tmp, i32 1
-  %mul.i = fmul <2 x float> %vecinit2.i, <float 0x401B333340000000, float 0x401B333340000000>
+  %mul.i = fmul <2 x float> %in, <float 0x401B333340000000, float 0x401B333340000000>
   %vcvt.i = fptosi <2 x float> %mul.i to <2 x i32>
-  tail call void @foo_int32x2_t(<2 x i32> %vcvt.i) nounwind
-  ret void
+  ret <2 x i32> %vcvt.i
 }
 
 ; Test which should not fold due to power of 2 out of range.
-; CHECK: t3
+; CHECK-LABEL: @t3
 ; CHECK: vmul
-define void @t3() nounwind {
-entry:
-  %tmp = load float, float* @in, align 4
-  %vecinit.i = insertelement <2 x float> undef, float %tmp, i32 0
-  %vecinit2.i = insertelement <2 x float> %vecinit.i, float %tmp, i32 1
-  %mul.i = fmul <2 x float> %vecinit2.i, <float 0x4200000000000000, float 0x4200000000000000>
+; CHECK: vcvt.s32.f32 d{{[0-9]+}}, d{{[0-9]+}}
+; CHECK: bx lr
+define <2 x i32> @t3(<2 x float> %in) {
+  %mul.i = fmul <2 x float> %in, <float 0x4200000000000000, float 0x4200000000000000>
   %vcvt.i = fptosi <2 x float> %mul.i to <2 x i32>
-  tail call void @foo_int32x2_t(<2 x i32> %vcvt.i) nounwind
-  ret void
+  ret <2 x i32> %vcvt.i
 }
 
 ; Test which case where const is max power of 2 (i.e., 2^32).
-; CHECK: t4
-; CHECK-NOT: vmul
-define void @t4() nounwind {
-entry:
-  %tmp = load float, float* @in, align 4
-  %vecinit.i = insertelement <2 x float> undef, float %tmp, i32 0
-  %vecinit2.i = insertelement <2 x float> %vecinit.i, float %tmp, i32 1
-  %mul.i = fmul <2 x float> %vecinit2.i, <float 0x41F0000000000000, float 0x41F0000000000000>
+; CHECK-LABEL: @t4
+; CHECK: vcvt.s32.f32 d{{[0-9]+}}, d{{[0-9]+}}, #32
+; CHECK: bx lr
+define <2 x i32> @t4(<2 x float> %in) {
+  %mul.i = fmul <2 x float> %in, <float 0x41F0000000000000, float 0x41F0000000000000>
   %vcvt.i = fptosi <2 x float> %mul.i to <2 x i32>
-  tail call void @foo_int32x2_t(<2 x i32> %vcvt.i) nounwind
-  ret void
+  ret <2 x i32> %vcvt.i
 }
 
 ; Test quadword.
-; CHECK: t5
-; CHECK-NOT: vmul
-define void @t5() nounwind {
-entry:
-  %tmp = load float, float* @in, align 4
-  %vecinit.i = insertelement <4 x float> undef, float %tmp, i32 0
-  %vecinit2.i = insertelement <4 x float> %vecinit.i, float %tmp, i32 1
-  %vecinit4.i = insertelement <4 x float> %vecinit2.i, float %tmp, i32 2
-  %vecinit6.i = insertelement <4 x float> %vecinit4.i, float %tmp, i32 3
-  %mul.i = fmul <4 x float> %vecinit6.i, <float 8.000000e+00, float 8.000000e+00, float 8.000000e+00, float 8.000000e+00>
+; CHECK-LABEL: @t5
+; CHECK: vcvt.s32.f32 q{{[0-9]+}}, q{{[0-9]+}}, #3
+; CHECK: bx lr
+define <4 x i32> @t5(<4 x float> %in) {
+  %mul.i = fmul <4 x float> %in, <float 8.0, float 8.0, float 8.0, float 8.0>
   %vcvt.i = fptosi <4 x float> %mul.i to <4 x i32>
-  tail call void @foo_int32x4_t(<4 x i32> %vcvt.i) nounwind
-  ret void
+  ret <4 x i32> %vcvt.i
 }
-
-declare void @foo_int32x4_t(<4 x i32>)
-- 
2.34.1