[llvm] r357291 - [InstCombine] autogenerate complete checks; NFC

Sanjay Patel via llvm-commits llvm-commits at lists.llvm.org
Fri Mar 29 10:51:39 PDT 2019 

Author: spatel
Date: Fri Mar 29 10:51:39 2019
New Revision: 357291

URL: http://llvm.org/viewvc/llvm-project?rev=357291&view=rev
Log:
[InstCombine] autogenerate complete checks; NFC

Modified:
    llvm/trunk/test/Transforms/InstCombine/phi-select-constant.ll

Modified: llvm/trunk/test/Transforms/InstCombine/phi-select-constant.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/phi-select-constant.ll?rev=357291&r1=357290&r2=357291&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/phi-select-constant.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/phi-select-constant.ll Fri Mar 29 10:51:39 2019
@@ -1,17 +1,24 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -S -instcombine | FileCheck %s
 @A = extern_weak global i32, align 4
 @B = extern_weak global i32, align 4
 
 define i32 @foo(i1 %which) {
+; CHECK-LABEL: @foo(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[WHICH:%.*]], label [[FINAL:%.*]], label [[DELAY:%.*]]
+; CHECK:       delay:
+; CHECK-NEXT:    br label [[FINAL]]
+; CHECK:       final:
+; CHECK-NEXT:    [[USE2:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ select (i1 icmp eq (i32* @A, i32* @B), i32 2, i32 1), [[DELAY]] ]
+; CHECK-NEXT:    ret i32 [[USE2]]
+;
 entry:
   br i1 %which, label %final, label %delay
 
 delay:
   br label %final
 
-; CHECK-LABEL: @foo
-; CHECK-LABEL: final:
-; CHECK: phi i32 [ 1, %entry ], [ select (i1 icmp eq (i32* @A, i32* @B), i32 2, i32 1), %delay ]
 final:
   %use2 = phi i1 [ false, %entry ], [ icmp eq (i32* @A, i32* @B), %delay ]
   %value = select i1 %use2, i32 2, i32 1
@@ -21,64 +28,76 @@ final:
 
 ; test folding of select into phi for vectors.
 define <4 x i64> @vec1(i1 %which) {
+; CHECK-LABEL: @vec1(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[WHICH:%.*]], label [[FINAL:%.*]], label [[DELAY:%.*]]
+; CHECK:       delay:
+; CHECK-NEXT:    br label [[FINAL]]
+; CHECK:       final:
+; CHECK-NEXT:    [[PHINODE:%.*]] = phi <4 x i64> [ zeroinitializer, [[ENTRY:%.*]] ], [ <i64 0, i64 0, i64 126, i64 127>, [[DELAY]] ]
+; CHECK-NEXT:    ret <4 x i64> [[PHINODE]]
+;
 entry:
   br i1 %which, label %final, label %delay
 
 delay:
- br label %final
+  br label %final
 
 final:
-; CHECK-LABEL: @vec1
-; CHECK-LABEL: final:
-; CHECK: %phinode = phi <4 x i64> [ zeroinitializer, %entry ], [ <i64 0, i64 0, i64 126, i64 127>, %delay ]
-; CHECK-NOT: select
-; CHECK: ret <4 x i64> %phinode
- %phinode =  phi <4 x i1> [ <i1 true, i1 true, i1 true, i1 true>, %entry ], [ <i1 true, i1 true, i1 false, i1 false>, %delay ]
- %sel = select <4 x i1> %phinode, <4 x i64> zeroinitializer, <4 x i64> <i64 124, i64 125, i64 126, i64 127>
- ret <4 x i64> %sel
+  %phinode =  phi <4 x i1> [ <i1 true, i1 true, i1 true, i1 true>, %entry ], [ <i1 true, i1 true, i1 false, i1 false>, %delay ]
+  %sel = select <4 x i1> %phinode, <4 x i64> zeroinitializer, <4 x i64> <i64 124, i64 125, i64 126, i64 127>
+  ret <4 x i64> %sel
 }
 
 define <4 x i64> @vec2(i1 %which) {
+; CHECK-LABEL: @vec2(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    br i1 [[WHICH:%.*]], label [[FINAL:%.*]], label [[DELAY:%.*]]
+; CHECK:       delay:
+; CHECK-NEXT:    br label [[FINAL]]
+; CHECK:       final:
+; CHECK-NEXT:    [[PHINODE:%.*]] = phi <4 x i64> [ <i64 124, i64 125, i64 126, i64 127>, [[ENTRY:%.*]] ], [ <i64 0, i64 125, i64 0, i64 127>, [[DELAY]] ]
+; CHECK-NEXT:    ret <4 x i64> [[PHINODE]]
+;
 entry:
   br i1 %which, label %final, label %delay
 
 delay:
- br label %final
+  br label %final
 
 final:
-; CHECK-LABEL: @vec2
-; CHECK-LABEL: final:
-; CHECK: %phinode = phi <4 x i64> [ <i64 124, i64 125, i64 126, i64 127>, %entry ], [ <i64 0, i64 125, i64 0, i64 127>, %delay ]
-; CHECK-NOT: select
-; CHECK: ret <4 x i64> %phinode
- %phinode =  phi <4 x i1> [ <i1 false, i1 false, i1 false, i1 false>, %entry ], [ <i1 true, i1 false, i1 true, i1 false>, %delay ]
- %sel = select <4 x i1> %phinode, <4 x i64> zeroinitializer, <4 x i64> <i64 124, i64 125, i64 126, i64 127>
- ret <4 x i64> %sel
+  %phinode =  phi <4 x i1> [ <i1 false, i1 false, i1 false, i1 false>, %entry ], [ <i1 true, i1 false, i1 true, i1 false>, %delay ]
+  %sel = select <4 x i1> %phinode, <4 x i64> zeroinitializer, <4 x i64> <i64 124, i64 125, i64 126, i64 127>
+  ret <4 x i64> %sel
 }
 
 ; Test PR33364
 ; Insert the generated select into the same block as the incoming phi value.
 ; phi has constant vectors along with a single non-constant vector as operands.
 define <2 x i8> @vec3(i1 %cond1, i1 %cond2, <2 x i1> %x, <2 x i8> %y, <2 x i8> %z) {
-; CHECK-LABEL: @vec3
-; CHECK: entry:
-; CHECK-NEXT: [[PHITMP1:%.*]] = shufflevector <2 x i8> %y, <2 x i8> %z, <2 x i32> <i32 2, i32 1>
+; CHECK-LABEL: @vec3(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[PHITMP1:%.*]] = shufflevector <2 x i8> [[Y:%.*]], <2 x i8> [[Z:%.*]], <2 x i32> <i32 2, i32 1>
+; CHECK-NEXT:    br i1 [[COND1:%.*]], label [[IF1:%.*]], label [[ELSE:%.*]]
+; CHECK:       if1:
+; CHECK-NEXT:    [[PHITMP2:%.*]] = shufflevector <2 x i8> [[Y]], <2 x i8> [[Z]], <2 x i32> <i32 0, i32 3>
+; CHECK-NEXT:    br i1 [[COND2:%.*]], label [[IF2:%.*]], label [[ELSE]]
+; CHECK:       if2:
+; CHECK-NEXT:    [[PHITMP:%.*]] = select <2 x i1> [[X:%.*]], <2 x i8> [[Y]], <2 x i8> [[Z]]
+; CHECK-NEXT:    br label [[ELSE]]
+; CHECK:       else:
+; CHECK-NEXT:    [[PHI:%.*]] = phi <2 x i8> [ [[PHITMP]], [[IF2]] ], [ [[PHITMP1]], [[ENTRY:%.*]] ], [ [[PHITMP2]], [[IF1]] ]
+; CHECK-NEXT:    ret <2 x i8> [[PHI]]
+;
 entry:
   br i1 %cond1, label %if1, label %else
 
-; CHECK: if1:
-; CHECK-NEXT: [[PHITMP2:%.*]] = shufflevector <2 x i8> %y, <2 x i8> %z, <2 x i32> <i32 0, i32 3>
 if1:
   br i1 %cond2, label %if2, label %else
 
-; CHECK: if2:
-; CHECK-NEXT: [[PHITMP3:%.*]] = select <2 x i1> %x, <2 x i8> %y, <2 x i8> %z
 if2:
   br label %else
 
-; CHECK: else:
-; CHECK-NEXT: [[PHITMP4:%.*]] = phi <2 x i8> [ [[PHITMP3]], %if2 ], [ [[PHITMP1]], %entry ], [ [[PHITMP2]], %if1 ]
-; CHECK-NEXT: ret <2 x i8> [[PHITMP4]]
 else:
   %phi = phi <2 x i1> [ %x, %if2 ], [ <i1 0, i1 1>, %entry ], [ <i1 1, i1 0>, %if1 ]
   %sel = select <2 x i1> %phi, <2 x i8> %y, <2 x i8> %z

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