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llvm-mirror/test/MC/Mips/mips-noat.s
Toma Tabacu 34510344f4 [mips] Improve support for the .set at/noat assembler directives.
Summary:
Made the following changes:
  Added calls to emitDirectiveSetNoAt() and emitDirectiveSetAt().
  Added special emit function for .set at=$reg, emitDirectiveSetAtWithArg(unsigned RegNo).
  Improved parsing error checks for .set at.
  Refactored parser code for .set at.
  Improved testing of both directives.
  Improved code readability and comments.

Reviewers: dsanders

Reviewed By: dsanders

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D7176

llvm-svn: 229097
2015-02-13 10:30:57 +00:00

34 lines
969 B
ArmAsm

# RUN: not llvm-mc %s -triple=mips-unknown-linux 2>%t0 | FileCheck %s
# RUN: FileCheck -check-prefix=ERROR %s < %t0
# Check that using the assembler temporary when .set noat is in effect is an error.
# We start with the assembler temporary enabled
# CHECK-LABEL: test1:
# CHECK: lui $1, 1
# CHECK: addu $1, $1, $2
# CHECK: lw $2, 0($1)
# CHECK-LABEL: test2:
# CHECK: .set noat
test1:
lw $2, 65536($2)
test2:
.set noat
lw $2, 65536($2) # ERROR: mips-noat.s:[[@LINE]]:9: error: pseudo-instruction requires $at, which is not available
# Can we switch it back on successfully?
# CHECK-LABEL: test3:
# CHECK: lui $1, 1
# CHECK: addu $1, $1, $2
# CHECK: lw $2, 0($1)
# CHECK-LABEL: test4:
# CHECK: .set at=$0
test3:
.set at
lw $2, 65536($2)
test4:
.set at=$0
lw $2, 65536($2) # ERROR: mips-noat.s:[[@LINE]]:9: error: pseudo-instruction requires $at, which is not available