llvm/test/MC/Mips/set-at-directive-explicit-at.s
Toma Tabacu af3ec2cfd4 [mips] [IAS] Improve warning for using AT with .set noat.
Summary:
Changed the warning message to show the current value of $at, similar to what clang does for typedef's, and renamed warnIfAssemblerTemporary to a more descriptive name.

I also changed the type of variables which store registers from int to unsigned, updated the relevant test and tried to make the related comments clearer.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D8479

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235881 91177308-0d34-0410-b5e6-96231b3b80d8
2015-04-27 14:05:04 +00:00

54 lines
1.9 KiB
ArmAsm

# 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
# 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]]: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]]:11: warning: used $at (currently $1) without ".set noat"
.set at=$1
jr $1
# 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
# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
.set at=$3
jr $at
# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
.set noat
jr $at
# CHECK: jr $1 # encoding: [0x08,0x00,0x20,0x00]
.set at=$0
jr $at
# CHECK: jr $16 # encoding: [0x08,0x00,0x00,0x02]
# 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]]:11: warning: used $at (currently $16) without ".set noat"
.set at=$16
jr $16