Support for microMIPS jump instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193623 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 113 insertions, 0 deletions

diff --git a/test/MC/Disassembler/Mips/micromips.txt b/test/MC/Disassembler/Mips/micromips.txt
index 30e2b5719c..e82732616f 100644
--- a/test/MC/Disassembler/Mips/micromips.txt
+++ b/test/MC/Disassembler/Mips/micromips.txt
@@ -213,3 +213,15 @@
 
 # CHECK: ins $9, $6, 3, 7
 0x01 0x26 0x48 0xcc
+
+# CHECK: j 1328
+0xd4 0x00 0x02 0x98
+
+# CHECK: jal 1328
+0xf4 0x00 0x02 0x98
+
+# CHECK: jalr $ra, $6
+0x03 0xe6 0x0f 0x3c
+
+# CHECK: jr $7
+0x00 0x07 0x0f 0x3c
diff --git a/test/MC/Disassembler/Mips/micromips_le.txt b/test/MC/Disassembler/Mips/micromips_le.txt
index ff77de5187..a42bf7933c 100644
--- a/test/MC/Disassembler/Mips/micromips_le.txt
+++ b/test/MC/Disassembler/Mips/micromips_le.txt
@@ -213,3 +213,15 @@
 
 # CHECK: ins $9, $6, 3, 7
 0x26 0x01 0xcc 0x48
+
+# CHECK: j 1328
+0x00 0xd4 0x98 0x02
+
+# CHECK: jal 1328
+0x00 0xf4 0x98 0x02
+
+# CHECK: jalr $ra, $6
+0xe6 0x03 0x3c 0x0f
+
+# CHECK: jr $7
+0x07 0x00 0x3c 0x0f
diff --git a/test/MC/Mips/micromips-jump-instructions.s b/test/MC/Mips/micromips-jump-instructions.s
new file mode 100644
index 0000000000..6f571b6879
--- /dev/null
+++ b/test/MC/Mips/micromips-jump-instructions.s
@@ -0,0 +1,40 @@
+# RUN: llvm-mc %s -triple=mipsel -show-encoding -mattr=micromips \
+# RUN: | FileCheck %s -check-prefix=CHECK-EL
+# RUN: llvm-mc %s -triple=mips -show-encoding -mattr=micromips \
+# RUN: | FileCheck %s -check-prefix=CHECK-EB
+# Check that the assembler can handle the documented syntax
+# for jump and branch instructions.
+#------------------------------------------------------------------------------
+# Jump instructions
+#------------------------------------------------------------------------------
+# Little endian
+#------------------------------------------------------------------------------
+# CHECK-EL: j 1328      # encoding: [0x00,0xd4,0x98,0x02]
+# CHECK-EL: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EL: jal 1328    # encoding: [0x00,0xf4,0x98,0x02]
+# CHECK-EL: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EL: jalr $6     # encoding: [0xe6,0x03,0x3c,0x0f]
+# CHECK-EL: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EL: jr $7       # encoding: [0x07,0x00,0x3c,0x0f]
+# CHECK-EL: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EL: jr $7       # encoding: [0x07,0x00,0x3c,0x0f]
+# CHECK-EL: nop         # encoding: [0x00,0x00,0x00,0x00]
+#------------------------------------------------------------------------------
+# Big endian
+#------------------------------------------------------------------------------
+# CHECK-EB: j 1328      # encoding: [0xd4,0x00,0x02,0x98]
+# CHECK-EB: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EB: jal 1328    # encoding: [0xf4,0x00,0x02,0x98]
+# CHECK-EB: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EB: jalr $6     # encoding: [0x03,0xe6,0x0f,0x3c]
+# CHECK-EB: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EB: jr $7       # encoding: [0x00,0x07,0x0f,0x3c]
+# CHECK-EB: nop         # encoding: [0x00,0x00,0x00,0x00]
+# CHECK-EB: jr $7       # encoding: [0x00,0x07,0x0f,0x3c]
+# CHECK-EB: nop         # encoding: [0x00,0x00,0x00,0x00]
+
+     j 1328
+     jal 1328
+     jalr $6
+     jr $7
+     j $7
diff --git a/test/MC/Mips/micromips-jump26.s b/test/MC/Mips/micromips-jump26.s
new file mode 100644
index 0000000000..936a9984ab
--- /dev/null
+++ b/test/MC/Mips/micromips-jump26.s
@@ -0,0 +1,23 @@
+# RUN: llvm-mc %s -triple=mipsel-unknown-linux -show-encoding \
+# RUN: -mattr=micromips | FileCheck %s -check-prefix=CHECK-FIXUP
+# RUN: llvm-mc %s -filetype=obj -triple=mipsel-unknown-linux \
+# RUN: -mattr=micromips | llvm-readobj -r \
+# RUN: | FileCheck %s -check-prefix=CHECK-ELF
+#------------------------------------------------------------------------------
+# Check that the assembler can handle the documented syntax
+# for relocations.
+#------------------------------------------------------------------------------
+# CHECK-FIXUP: foo:
+# CHECK-FIXUP:   jal bar # encoding: [A,0xf4'A',A,0b000000AA]
+# CHECK-FIXUP:           #   fixup A - offset: 0,
+# CHECK-FIXUP:               value: bar, kind: fixup_MICROMIPS_26_S1
+# CHECK-FIXUP:   nop     # encoding: [0x00,0x00,0x00,0x00]
+#------------------------------------------------------------------------------
+# Check that the appropriate relocations were created.
+#------------------------------------------------------------------------------
+# CHECK-ELF: Relocations [
+# CHECK-ELF:     0x{{[0-9,A-F]+}} R_MICROMIPS_26_S1
+# CHECK-ELF: ]
+
+foo:
+  jal bar
diff --git a/test/MC/Mips/micromips-tailr.s b/test/MC/Mips/micromips-tailr.s
new file mode 100644
index 0000000000..0c21a7bf21
--- /dev/null
+++ b/test/MC/Mips/micromips-tailr.s
@@ -0,0 +1,26 @@
+# RUN: llvm-mc %s -triple=mipsel-unknown-linux -show-encoding \
+# RUN: -mattr=micromips | FileCheck %s -check-prefix=CHECK-FIXUP
+# RUN: llvm-mc %s -filetype=obj -triple=mipsel-unknown-linux \
+# RUN: -mattr=micromips | llvm-readobj -r \
+# RUN: | FileCheck %s -check-prefix=CHECK-ELF
+#------------------------------------------------------------------------------
+# Check that the assembler can handle the documented syntax
+# for relocations.
+#------------------------------------------------------------------------------
+# CHECK-FIXUP: foo:
+# CHECK-FIXUP:   addiu $2, $zero, 1332
+# CHECK-FIXUP:         # encoding: [0x40,0x30,0x34,0x05]
+# CHECK-FIXUP:   j foo # encoding: [A,0xd4'A',A,0b000000AA]
+# CHECK-FIXUP:         #   fixup A - offset: 0,
+# CHECK-FIXUP:             value: foo, kind: fixup_MICROMIPS_26_S1
+# CHECK-FIXUP:   nop   # encoding: [0x00,0x00,0x00,0x00]
+#------------------------------------------------------------------------------
+# Check that the appropriate relocations were created.
+#------------------------------------------------------------------------------
+# CHECK-ELF: Relocations [
+# CHECK-ELF:     0x{{[0-9,A-F]+}} R_MICROMIPS_26_S1
+# CHECK-ELF: ]
+
+foo:
+  addiu $2, $0, 1332
+  j foo