[SystemZ] Add "volatile" to a dead store in variable-loc.ll

Richard Sandiford · Richard Sandiford · commit dcbd7ca4a719 · 2014-01-13T15:42:16.000Z
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199116 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/DebugInfo/SystemZ/variable-loc.ll b/test/DebugInfo/SystemZ/variable-loc.ll
@@ -2,7 +2,7 @@
 ;
 ; This is a regression test making sure the location of variables is correct in
 ; debugging information, even if they're addressed via the frame pointer.
-; A copy of the AArch64 test, commandeered for SystemZ.
+; Originally a copy of the AArch64 test, commandeered for SystemZ.
 ;
 ; First make sure main_arr is where we expect it: %r11 + 164
 ;
@@ -39,7 +39,7 @@ entry:
   %retval = alloca i32, align 4
   %main_arr = alloca [100 x i32], align 4
   %val = alloca i32, align 4
-  store i32 0, i32* %retval
+  store volatile i32 0, i32* %retval
   call void @llvm.dbg.declare(metadata !{[100 x i32]* %main_arr}, metadata !17), !dbg !22
   call void @llvm.dbg.declare(metadata !{i32* %val}, metadata !23), !dbg !24
   %arraydecay = getelementptr inbounds [100 x i32]* %main_arr, i32 0, i32 0, !dbg !25

Original file line number	Diff line number	Diff line change
`@@ -2,7 +2,7 @@`
`2`	`2`	`;`
`3`	`3`	`; This is a regression test making sure the location of variables is correct in`
`4`	`4`	`; debugging information, even if they're addressed via the frame pointer.`
`5`		`-; A copy of the AArch64 test, commandeered for SystemZ.`
	`5`	`+; Originally a copy of the AArch64 test, commandeered for SystemZ.`
`6`	`6`	`;`
`7`	`7`	`; First make sure main_arr is where we expect it: %r11 + 164`
`8`	`8`	`;`
`@@ -39,7 +39,7 @@ entry:`
`39`	`39`	`%retval = alloca i32, align 4`
`40`	`40`	`%main_arr = alloca [100 x i32], align 4`
`41`	`41`	`%val = alloca i32, align 4`
`42`		`- store i32 0, i32* %retval`
	`42`	`+ store volatile i32 0, i32* %retval`
`43`	`43`	`call void @llvm.dbg.declare(metadata !{[100 x i32]* %main_arr}, metadata !17), !dbg !22`
`44`	`44`	`call void @llvm.dbg.declare(metadata !{i32* %val}, metadata !23), !dbg !24`
`45`	`45`	`%arraydecay = getelementptr inbounds [100 x i32]* %main_arr, i32 0, i32 0, !dbg !25`