[llvm] r332532 - [ARM] preserve test intent by removing undef

[Sanjay Patel via llvm-commits]

Author: spatel
Date: Wed May 16 14:57:00 2018
New Revision: 332532

URL: http://llvm.org/viewvc/llvm-project?rev=332532&view=rev
Log:
[ARM] preserve test intent by removing undef

We need to clean up the DAG floating-point undef logic.
This process is similar to how we handled integer undef
logic in D43141.

And as we did there, I'm trying to reduce the patch by
changing tests that would probably become meaningless
once we correct FP undef folding.

Modified:
    llvm/trunk/test/CodeGen/ARM/debug-info-branch-folding.ll

Modified: llvm/trunk/test/CodeGen/ARM/debug-info-branch-folding.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/debug-info-branch-folding.ll?rev=332532&r1=332531&r2=332532&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/debug-info-branch-folding.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/debug-info-branch-folding.ll Wed May 16 14:57:00 2018
@@ -2,7 +2,7 @@
 target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:32:64-v128:32:128-a0:0:32-n32"
 target triple = "thumbv7-apple-macosx10.6.7"
 
-;CHECK: 	vadd.f32	q4, q8, q8
+;CHECK: 	vadd.f32	q4, q8, q9
 ;CHECK-NEXT: LBB0_1
 
 ;CHECK:         @DEBUG_VALUE: x <- $q4{{$}}
@@ -14,14 +14,14 @@ target triple = "thumbv7-apple-macosx10.
 
 declare <4 x float> @test0001(float) nounwind readnone ssp
 
-define i32 @main(i32 %argc, i8** nocapture %argv, i1 %cond) nounwind ssp !dbg !10 {
+define i32 @main(i32 %argc, i8** nocapture %argv, i1 %cond, <4 x float> %x) nounwind ssp !dbg !10 {
 entry:
   br label %for.body9
 
 for.body9:                                        ; preds = %for.body9, %entry
-  %add19 = fadd <4 x float> undef, <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, !dbg !39
+  %add19 = fadd <4 x float> %x, <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, !dbg !39
   tail call void @llvm.dbg.value(metadata <4 x float> %add19, metadata !27, metadata !DIExpression()), !dbg !39
-  %add20 = fadd <4 x float> undef, <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, !dbg !39
+  %add20 = fadd <4 x float> %x, <float 0.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, !dbg !39
   tail call void @llvm.dbg.value(metadata <4 x float> %add20, metadata !28, metadata !DIExpression()), !dbg !39
   br i1 %cond, label %for.end54, label %for.body9, !dbg !44