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| author | Daniel Dunbar <daniel@zuster.org> | 2010-05-22 21:02:33 +0000 |
|---|---|---|
| committer | Daniel Dunbar <daniel@zuster.org> | 2010-05-22 21:02:33 +0000 |
| commit | 62e4c671b6b0f13c04a20bb43c05bfe84984ef34 (patch) | |
| tree | 89eddc03327d26efb48cd8430d0a0cc0a69b21e5 /test/MC | |
| parent | 54ddf3d9c756881021afcb869a6ec892a21aef5b (diff) | |
| download | llvm-62e4c671b6b0f13c04a20bb43c05bfe84984ef34.tar.gz llvm-62e4c671b6b0f13c04a20bb43c05bfe84984ef34.tar.bz2 llvm-62e4c671b6b0f13c04a20bb43c05bfe84984ef34.tar.xz | |
MC/X86: Subdivide immediates a bit more, so that we properly recognize immediates based on the width of the target instruction. For example:
addw $0xFFFF, %ax
should match the same as
addw $-1, %ax
but we used to match it to the longer encoding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104453 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/MC')
| -rw-r--r-- | test/MC/AsmParser/X86/x86_64-imm-widths.s | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/test/MC/AsmParser/X86/x86_64-imm-widths.s b/test/MC/AsmParser/X86/x86_64-imm-widths.s new file mode 100644 index 0000000000..6243717ba8 --- /dev/null +++ b/test/MC/AsmParser/X86/x86_64-imm-widths.s @@ -0,0 +1,105 @@ +// RUN: llvm-mc -triple x86_64- --show-encoding %s | FileCheck %s + +// CHECK: addb $0, %al +// CHECK: encoding: [0x04,0x00] + addb $0x00, %al + +// CHECK: addb $127, %al +// CHECK: encoding: [0x04,0x7f] + addb $0x7F, %al + +// CHECK: addb $128, %al +// CHECK: encoding: [0x04,0x80] + addb $0x80, %al + +// CHECK: addb $255, %al +// CHECK: encoding: [0x04,0xff] + addb $0xFF, %al + +// CHECK: addw $0, %ax +// CHECK: encoding: [0x66,0x83,0xc0,0x00] + addw $0x0000, %ax + +// CHECK: addw $127, %ax +// CHECK: encoding: [0x66,0x83,0xc0,0x7f] + addw $0x007F, %ax + +// CHECK: addw $65408, %ax +// CHECK: encoding: [0x66,0x83,0xc0,0x80] + addw $0xFF80, %ax + +// CHECK: addw $65535, %ax +// CHECK: encoding: [0x66,0x83,0xc0,0xff] + addw $0xFFFF, %ax + +// CHECK: addl $0, %eax +// CHECK: encoding: [0x83,0xc0,0x00] + addl $0x00000000, %eax + +// CHECK: addl $127, %eax +// CHECK: encoding: [0x83,0xc0,0x7f] + addl $0x0000007F, %eax + +// CHECK: addl $65408, %eax +// CHECK: encoding: [0x05,0x80,0xff,0x00,0x00] + addl $0xFF80, %eax + +// CHECK: addl $65535, %eax +// CHECK: encoding: [0x05,0xff,0xff,0x00,0x00] + addl $0xFFFF, %eax + +// CHECK: addl $4294967168, %eax +// CHECK: encoding: [0x83,0xc0,0x80] + addl $0xFFFFFF80, %eax + +// CHECK: addl $4294967295, %eax +// CHECK: encoding: [0x83,0xc0,0xff] + addl $0xFFFFFFFF, %eax + +// CHECK: addq $0, %rax +// CHECK: encoding: [0x48,0x83,0xc0,0x00] + addq $0x0000000000000000, %rax + +// CHECK: addq $127, %rax +// CHECK: encoding: [0x48,0x83,0xc0,0x7f] + addq $0x000000000000007F, %rax + +// CHECK: addq $-128, %rax +// CHECK: encoding: [0x48,0x83,0xc0,0x80] + addq $0xFFFFFFFFFFFFFF80, %rax + +// CHECK: addq $-1, %rax +// CHECK: encoding: [0x48,0x83,0xc0,0xff] + addq $0xFFFFFFFFFFFFFFFF, %rax + +// CHECK: addq $0, %rax +// CHECK: encoding: [0x48,0x83,0xc0,0x00] + addq $0x0000000000000000, %rax + +// CHECK: addq $65408, %rax +// CHECK: encoding: [0x48,0x05,0x80,0xff,0x00,0x00] + addq $0xFF80, %rax + +// CHECK: addq $65535, %rax +// CHECK: encoding: [0x48,0x05,0xff,0xff,0x00,0x00] + addq $0xFFFF, %rax + +// CHECK: movq $4294967168, %rax +// CHECK: encoding: [0x48,0xb8,0x80,0xff,0xff,0xff,0x00,0x00,0x00,0x00] + movq $0xFFFFFF80, %rax + +// CHECK: movq $4294967295, %rax +// CHECK: encoding: [0x48,0xb8,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00] + movq $0xFFFFFFFF, %rax + +// CHECK: addq $2147483647, %rax +// CHECK: encoding: [0x48,0x05,0xff,0xff,0xff,0x7f] + addq $0x000000007FFFFFFF, %rax + +// CHECK: addq $-2147483648, %rax +// CHECK: encoding: [0x48,0x05,0x00,0x00,0x00,0x80] + addq $0xFFFFFFFF80000000, %rax + +// CHECK: addq $-256, %rax +// CHECK: encoding: [0x48,0x05,0x00,0xff,0xff,0xff] + addq $0xFFFFFFFFFFFFFF00, %rax |