[llvm] 4cf7446 - [NFC][SimplifyCFG] Add basic test for debuginfo preservation of `ret` tail merging

[Roman Lebedev via llvm-commits]

Author: Roman Lebedev
Date: 2021-06-21T23:56:54+03:00
New Revision: 4cf74469a0f58c01a7fcf140a028b2a68f71df58

URL: https://github.com/llvm/llvm-project/commit/4cf74469a0f58c01a7fcf140a028b2a68f71df58
DIFF: https://github.com/llvm/llvm-project/commit/4cf74469a0f58c01a7fcf140a028b2a68f71df58.diff

LOG: [NFC][SimplifyCFG] Add basic test for debuginfo preservation of `ret` tail merging

Added: 
    

Modified: 
    llvm/test/Transforms/SimplifyCFG/return-merge.ll

Removed: 
    


################################################################################
diff  --git a/llvm/test/Transforms/SimplifyCFG/return-merge.ll b/llvm/test/Transforms/SimplifyCFG/return-merge.ll
index 31df0bf8059f..e1e35dae718b 100644
--- a/llvm/test/Transforms/SimplifyCFG/return-merge.ll
+++ b/llvm/test/Transforms/SimplifyCFG/return-merge.ll
@@ -1,5 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
-; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
+; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck --check-prefixes=CHECK %s
+; RUN: opt < %s -debugify -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck --check-prefixes=DBGINFO %s
 
 define i32 @test1(i1 %C) {
 ; CHECK-LABEL: @test1(
@@ -7,6 +8,12 @@ define i32 @test1(i1 %C) {
 ; CHECK-NEXT:    [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], i32 1, i32 0
 ; CHECK-NEXT:    ret i32 [[SPEC_SELECT]]
 ;
+; DBGINFO-LABEL: @test1(
+; DBGINFO-NEXT:  entry:
+; DBGINFO-NEXT:    call void @llvm.dbg.value(metadata i32 0, metadata [[META9:![0-9]+]], metadata !DIExpression()), !dbg [[DBG11:![0-9]+]]
+; DBGINFO-NEXT:    [[SPEC_SELECT:%.*]] = select i1 [[C:%.*]], i32 1, i32 0, !dbg [[DBG11]]
+; DBGINFO-NEXT:    ret i32 [[SPEC_SELECT]], !dbg [[DBG12:![0-9]+]]
+;
 entry:
   br i1 %C, label %T, label %F
 T:              ; preds = %entry
@@ -19,6 +26,11 @@ define void @test2(i1 %C) {
 ; CHECK-LABEL: @test2(
 ; CHECK-NEXT:  T:
 ; CHECK-NEXT:    ret void
+;
+; DBGINFO-LABEL: @test2(
+; DBGINFO-NEXT:  T:
+; DBGINFO-NEXT:    call void @llvm.dbg.value(metadata i32 0, metadata [[META15:![0-9]+]], metadata !DIExpression()), !dbg [[DBG16:![0-9]+]]
+; DBGINFO-NEXT:    ret void, !dbg [[DBG17:![0-9]+]]
 ;
   br i1 %C, label %T, label %F
 T:              ; preds = %0