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authorJohnny Chen <johnny.chen@apple.com>2011-04-01 20:21:38 +0000
committerJohnny Chen <johnny.chen@apple.com>2011-04-01 20:21:38 +0000
commitec30f6f5e5e53f384f3cbdade08ba654ef3680c7 (patch)
tree4d5c524d79d9248065d099488d9240e545a4d281 /test
parentce1498bdbe32d0d6ab14d449d559ee76c0b30d9d (diff)
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Fix a LDRT/LDRBT decoding bug where for Encoding A2, if Inst{4} != 0, we should reject the instruction
as invalid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128734 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
-rw-r--r--test/MC/Disassembler/ARM/arm-tests.txt3
-rw-r--r--test/MC/Disassembler/ARM/invalid-LDRT-arm.txt12
2 files changed, 15 insertions, 0 deletions
diff --git a/test/MC/Disassembler/ARM/arm-tests.txt b/test/MC/Disassembler/ARM/arm-tests.txt
index 7947c6a3d5..4e39e8e9b3 100644
--- a/test/MC/Disassembler/ARM/arm-tests.txt
+++ b/test/MC/Disassembler/ARM/arm-tests.txt
@@ -45,6 +45,9 @@
# CHECK: ldr r0, [r2], #15
0x0f 0x00 0x92 0xe4
+# CHECK: ldr r5, [r7, -r10, lsl #2]
+0x0a 0x51 0x17 0xe7
+
# CHECK: ldrh r0, [r2], #0
0xb0 0x00 0xd2 0xe0
diff --git a/test/MC/Disassembler/ARM/invalid-LDRT-arm.txt b/test/MC/Disassembler/ARM/invalid-LDRT-arm.txt
new file mode 100644
index 0000000000..fb2ce20d2c
--- /dev/null
+++ b/test/MC/Disassembler/ARM/invalid-LDRT-arm.txt
@@ -0,0 +1,12 @@
+# RUN: llvm-mc --disassemble %s -triple=arm-apple-darwin9 |& grep {invalid instruction encoding}
+
+# Opcode=0 Name=PHI Format=(42)
+# 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
+# -------------------------------------------------------------------------------------------------
+# | 1: 1: 1: 0| 0: 1: 1: 0| 0: 0: 1: 1| 0: 1: 1: 1| 0: 1: 0: 1| 0: 0: 0: 1| 0: 0: 0: 1| 0: 0: 0: 0|
+# -------------------------------------------------------------------------------------------------
+#
+# The bytes have Inst{4} = 1, so it's not an LDRT Encoding A2 instruction.
+0x10 0x51 0x37 0xe6
+
+