Add comment on instruction handling status

thurstond · thurstond · commit 4da8328e8d27 · 2025-01-31T00:11:12.000Z
diff --git a/llvm/test/Instrumentation/MemorySanitizer/AArch64/qshrn.ll b/llvm/test/Instrumentation/MemorySanitizer/AArch64/qshrn.ll
@@ -2,6 +2,9 @@
 ; RUN: opt < %s -passes=msan -S | FileCheck %s
 ;
 ; Forked from llvm/test/CodeGen/AArch64/qshrn.ll
+;
+; Heuristically (but correctly) handled: llvm.smax, llvm.smin, llvm.umin
+; Incorrectly handled (handleUnknownInstruction): llvm.aarch64.neon.sqxtn, llvm.aarch64.neon.sqxtun, llvm.aarch64.neon.uqxtn
 
 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
 target triple = "aarch64--linux-android9001"

Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,9 @@`
`2`	`2`	`; RUN: opt < %s -passes=msan -S \| FileCheck %s`
`3`	`3`	`;`
`4`	`4`	`; Forked from llvm/test/CodeGen/AArch64/qshrn.ll`
	`5`	`+;`
	`6`	`+; Heuristically (but correctly) handled: llvm.smax, llvm.smin, llvm.umin`
	`7`	`+; Incorrectly handled (handleUnknownInstruction): llvm.aarch64.neon.sqxtn, llvm.aarch64.neon.sqxtun, llvm.aarch64.neon.uqxtn`
`5`	`8`
`6`	`9`	`target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"`
`7`	`10`	`target triple = "aarch64--linux-android9001"`