# RUN: llvm-mc %s -triple=mipsel-unknown-linux -show-encoding -mcpu=mips32r2 \
# RUN: 2>%t1 | FileCheck %s
# RUN: FileCheck -check-prefix=WARNINGS %s < %t1
-# Check that the assembler can handle the documented syntax
-# for ".set at" and set the correct value. The correct value for $at is always
-# $1 when written by the user.
+
+# Check that the assembler can handle the documented syntax for ".set at" and
+# will set the correct value for $at.
+# Note that writing $at is always the same as writing $1.
+
.text
foo:
# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
-# WARNINGS: :[[@LINE+2]]:12: warning: Used $at without ".set noat"
+# WARNINGS: :[[@LINE+2]]:11: warning: used $at (currently $1) without ".set noat"
.set at=$1
jr $at
# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
-# WARNINGS: :[[@LINE+2]]:12: warning: Used $at without ".set noat"
+# WARNINGS: :[[@LINE+2]]:11: warning: used $at (currently $1) without ".set noat"
.set at=$1
jr $1
-# WARNINGS-NOT: warning: Used $at without ".set noat"
+# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
+# WARNINGS: :[[@LINE+2]]:11: warning: used $at (currently $1) without ".set noat"
+ .set at=$at
+ jr $at
+
+# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
+# WARNINGS: :[[@LINE+2]]:11: warning: used $at (currently $1) without ".set noat"
+ .set at=$at
+ jr $1
+
+# WARNINGS-NOT: warning: used $at (currently ${{[0-9]+}}) without ".set noat"
# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
.set at=$2
jr $at
jr $at
# CHECK: jr $16 # encoding: [0x08,0x00,0x00,0x02]
-# WARNINGS: :[[@LINE+2]]:12: warning: Used $16 with ".set at=$16"
+# WARNINGS: :[[@LINE+2]]:11: warning: used $at (currently $16) without ".set noat"
.set at=$16
jr $s0
# CHECK: jr $16 # encoding: [0x08,0x00,0x00,0x02]
-# WARNINGS: :[[@LINE+2]]:12: warning: Used $16 with ".set at=$16"
+# WARNINGS: :[[@LINE+2]]:11: warning: used $at (currently $16) without ".set noat"
.set at=$16
jr $16
-# WARNINGS-NOT: warning