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llvm-mirror/test/MC/Mips/mips-expansions.s
Toma Tabacu 06b97e75b0 [mips] Add assembler support for the "la $reg,symbol" pseudo-instruction.
Summary:
This pseudo-instruction allows the programmer to load an address from a symbolic expression into a register.

Patch by David Chisnall.
His work was sponsored by: DARPA, AFRL

I've made some minor changes to the original, such as improving the formatting and adding some comments, and I've also added a test case.

Reviewers: dsanders

Reviewed By: dsanders

Differential Revision: http://reviews.llvm.org/D4808

llvm-svn: 215630
2014-08-14 10:29:17 +00:00

82 lines
4.2 KiB
ArmAsm

# RUN: llvm-mc %s -triple=mipsel-unknown-linux -show-encoding -mcpu=mips32r2 | FileCheck %s
# Check that the assembler can handle the documented syntax
# for macro instructions
#------------------------------------------------------------------------------
# Load immediate instructions
#------------------------------------------------------------------------------
# CHECK: ori $5, $zero, 123 # encoding: [0x7b,0x00,0x05,0x34]
# CHECK: addiu $6, $zero, -2345 # encoding: [0xd7,0xf6,0x06,0x24]
# CHECK: lui $7, 1 # encoding: [0x01,0x00,0x07,0x3c]
# CHECK: ori $7, $7, 2 # encoding: [0x02,0x00,0xe7,0x34]
# CHECK: addiu $8, $zero, -8 # encoding: [0xf8,0xff,0x08,0x24]
# CHECK: addiu $4, $zero, 20 # encoding: [0x14,0x00,0x04,0x24]
# CHECK: lui $7, 1 # encoding: [0x01,0x00,0x07,0x3c]
# CHECK: ori $7, $7, 2 # encoding: [0x02,0x00,0xe7,0x34]
# CHECK: addiu $4, $5, 20 # encoding: [0x14,0x00,0xa4,0x24]
# CHECK: lui $7, 1 # encoding: [0x01,0x00,0x07,0x3c]
# CHECK: ori $7, $7, 2 # encoding: [0x02,0x00,0xe7,0x34]
# CHECK: addu $7, $7, $8 # encoding: [0x21,0x38,0xe8,0x00]
# CHECK: lui $8, %hi(symbol) # encoding: [A,A,0x08,0x3c]
# fixup A - offset: 0, value: symbol@ABS_HI, kind: fixup_Mips_HI16
# CHECK: ori $8, $8, %lo(symbol) # encoding: [A,A,0x08,0x35]
# fixup A - offset: 0, value: symbol@ABS_LO, kind: fixup_Mips_LO16
# CHECK: .set mips64
# CHECK: lui $8, %highest(symbol) # encoding: [A,A,0x08,0x3c]
# fixup A - offset: 0, value: symbol@HIGHEST, kind: fixup_Mips_HIGHEST
# CHECK: ori $8, $8, %higher(symbol) # encoding: [A,A,0x08,0x35]
# fixup A - offset: 0, value: symbol@HIGHER, kind: fixup_Mips_HIGHER
# CHECK: dsll $8, $8, 16 # encoding: [0x38,0x44,0x08,0x00]
# CHECK: ori $8, $8, %hi(symbol) # encoding: [A,A,0x08,0x35]
# fixup A - offset: 0, value: symbol@ABS_HI, kind: fixup_Mips_HI16
# CHECK: dsll $8, $8, 16 # encoding: [0x38,0x44,0x08,0x00]
# CHECK: ori $8, $8, %lo(symbol) # encoding: [A,A,0x08,0x35]
# fixup A - offset: 0, value: symbol@ABS_LO, kind: fixup_Mips_LO16
# CHECK: .set mips32r2
# CHECK: lui $10, %hi(symbol) # encoding: [A,A,0x0a,0x3c]
# CHECK: # fixup A - offset: 0, value: symbol@ABS_HI, kind: fixup_Mips_HI16
# CHECK: addu $10, $10, $4 # encoding: [0x21,0x50,0x44,0x01]
# CHECK: lw $10, %lo(symbol)($10) # encoding: [A,A,0x4a,0x8d]
# CHECK: # fixup A - offset: 0, value: symbol@ABS_LO, kind: fixup_Mips_LO16
# CHECK: lui $1, %hi(symbol) # encoding: [A,A,0x01,0x3c]
# CHECK: # fixup A - offset: 0, value: symbol@ABS_HI, kind: fixup_Mips_HI16
# CHECK: addu $1, $1, $9 # encoding: [0x21,0x08,0x29,0x00]
# CHECK: sw $10, %lo(symbol)($1) # encoding: [A,A,0x2a,0xac]
# CHECK: # fixup A - offset: 0, value: symbol@ABS_LO, kind: fixup_Mips_LO16
# CHECK: lui $10, 10 # encoding: [0x0a,0x00,0x0a,0x3c]
# CHECK: addu $10, $10, $4 # encoding: [0x21,0x50,0x44,0x01]
# CHECK: lw $10, 123($10) # encoding: [0x7b,0x00,0x4a,0x8d]
# CHECK: lui $1, 2 # encoding: [0x02,0x00,0x01,0x3c]
# CHECK: addu $1, $1, $9 # encoding: [0x21,0x08,0x29,0x00]
# CHECK: sw $10, 57920($1) # encoding: [0x40,0xe2,0x2a,0xac]
# CHECK: lui $1, %hi(symbol)
# CHECK: ldc1 $f0, %lo(symbol)($1)
# CHECK: lui $1, %hi(symbol)
# CHECK: sdc1 $f0, %lo(symbol)($1)
li $5,123
li $6,-2345
li $7,65538
li $8, ~7
la $a0, 20
la $7,65538
la $a0, 20($a1)
la $7,65538($8)
la $t0, symbol
.set mips64
la $t0, symbol
.set mips32r2
.set noat
lw $t2, symbol($a0)
.set at
sw $t2, symbol($t1)
lw $t2, 655483($a0)
sw $t2, 123456($t1)
ldc1 $f0, symbol
sdc1 $f0, symbol