| // RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-objdump -d - | FileCheck %s |
| |
| // Test that we avoid relaxing these instructions and instead generate versions |
| // that use 8-bit immediate values. |
| |
| bar: |
| // CHECK: Disassembly of section imul: |
| // CHECK-NEXT: imul: |
| // CHECK-NEXT: 0: 66 6b db 80 imulw $-128, %bx, %bx |
| // CHECK-NEXT: 4: 66 6b 1c 25 00 00 00 00 7f imulw $127, 0, %bx |
| // CHECK-NEXT: d: 6b db 00 imull $0, %ebx, %ebx |
| // CHECK-NEXT: 10: 6b 1c 25 00 00 00 00 01 imull $1, 0, %ebx |
| // CHECK-NEXT: 18: 48 6b db ff imulq $-1, %rbx, %rbx |
| // CHECK-NEXT: 1c: 48 6b 1c 25 00 00 00 00 2a imulq $42, 0, %rbx |
| .section imul,"x" |
| imul $-128, %bx, %bx |
| imul $127, bar, %bx |
| imul $0, %ebx, %ebx |
| imul $1, bar, %ebx |
| imul $-1, %rbx, %rbx |
| imul $42, bar, %rbx |
| |
| |
| // CHECK: Disassembly of section and: |
| // CHECK-NEXT: and: |
| // CHECK-NEXT: 0: 66 83 e3 7f andw $127, %bx |
| // CHECK-NEXT: 4: 66 83 24 25 00 00 00 00 00 andw $0, 0 |
| // CHECK-NEXT: d: 83 e3 01 andl $1, %ebx |
| // CHECK-NEXT: 10: 83 24 25 00 00 00 00 ff andl $-1, 0 |
| // CHECK-NEXT: 18: 48 83 e3 2a andq $42, %rbx |
| // CHECK-NEXT: 1c: 48 83 24 25 00 00 00 00 80 andq $-128, 0 |
| .section and,"x" |
| and $127, %bx |
| andw $0, bar |
| and $1, %ebx |
| andl $-1, bar |
| and $42, %rbx |
| andq $-128, bar |
| |
| // CHECK: Disassembly of section or: |
| // CHECK-NEXT: or: |
| // CHECK-NEXT: 0: 66 83 cb 00 orw $0, %bx |
| // CHECK-NEXT: 4: 66 83 0c 25 00 00 00 00 01 orw $1, 0 |
| // CHECK-NEXT: d: 83 cb ff orl $-1, %ebx |
| // CHECK-NEXT: 10: 83 0c 25 00 00 00 00 2a orl $42, 0 |
| // CHECK-NEXT: 18: 48 83 cb 80 orq $-128, %rbx |
| // CHECK-NEXT: 1c: 48 83 0c 25 00 00 00 00 7f orq $127, 0 |
| .section or,"x" |
| or $0, %bx |
| orw $1, bar |
| or $-1, %ebx |
| orl $42, bar |
| or $-128, %rbx |
| orq $127, bar |
| |
| // CHECK: Disassembly of section xor: |
| // CHECK-NEXT: xor: |
| // CHECK-NEXT: 0: 66 83 f3 01 xorw $1, %bx |
| // CHECK-NEXT: 4: 66 83 34 25 00 00 00 00 ff xorw $-1, 0 |
| // CHECK-NEXT: d: 83 f3 2a xorl $42, %ebx |
| // CHECK-NEXT: 10: 83 34 25 00 00 00 00 80 xorl $-128, 0 |
| // CHECK-NEXT: 18: 48 83 f3 7f xorq $127, %rbx |
| // CHECK-NEXT: 1c: 48 83 34 25 00 00 00 00 00 xorq $0, 0 |
| .section xor,"x" |
| xor $1, %bx |
| xorw $-1, bar |
| xor $42, %ebx |
| xorl $-128, bar |
| xor $127, %rbx |
| xorq $0, bar |
| |
| // CHECK: Disassembly of section add: |
| // CHECK-NEXT: add: |
| // CHECK-NEXT: 0: 66 83 c3 ff addw $-1, %bx |
| // CHECK-NEXT: 4: 66 83 04 25 00 00 00 00 2a addw $42, 0 |
| // CHECK-NEXT: d: 83 c3 80 addl $-128, %ebx |
| // CHECK-NEXT: 10: 83 04 25 00 00 00 00 7f addl $127, 0 |
| // CHECK-NEXT: 18: 48 83 c3 00 addq $0, %rbx |
| // CHECK-NEXT: 1c: 48 83 04 25 00 00 00 00 01 addq $1, 0 |
| .section add,"x" |
| add $-1, %bx |
| addw $42, bar |
| add $-128, %ebx |
| addl $127, bar |
| add $0, %rbx |
| addq $1, bar |
| |
| // CHECK: Disassembly of section sub: |
| // CHECK-NEXT: sub: |
| // CHECK-NEXT: 0: 66 83 eb 2a subw $42, %bx |
| // CHECK-NEXT: 4: 66 83 2c 25 00 00 00 00 80 subw $-128, 0 |
| // CHECK-NEXT: d: 83 eb 7f subl $127, %ebx |
| // CHECK-NEXT: 10: 83 2c 25 00 00 00 00 00 subl $0, 0 |
| // CHECK-NEXT: 18: 48 83 eb 01 subq $1, %rbx |
| // CHECK-NEXT: 1c: 48 83 2c 25 00 00 00 00 ff subq $-1, 0 |
| .section sub,"x" |
| sub $42, %bx |
| subw $-128, bar |
| sub $127, %ebx |
| subl $0, bar |
| sub $1, %rbx |
| subq $-1, bar |
| |
| // CHECK: Disassembly of section cmp: |
| // CHECK-NEXT: cmp: |
| // CHECK-NEXT: 0: 66 83 fb 80 cmpw $-128, %bx |
| // CHECK-NEXT: 4: 66 83 3c 25 00 00 00 00 7f cmpw $127, 0 |
| // CHECK-NEXT: d: 83 fb 00 cmpl $0, %ebx |
| // CHECK-NEXT: 10: 83 3c 25 00 00 00 00 01 cmpl $1, 0 |
| // CHECK-NEXT: 18: 48 83 fb ff cmpq $-1, %rbx |
| // CHECK-NEXT: 1c: 48 83 3c 25 00 00 00 00 2a cmpq $42, 0 |
| .section cmp,"x" |
| cmp $-128, %bx |
| cmpw $127, bar |
| cmp $0, %ebx |
| cmpl $1, bar |
| cmp $-1, %rbx |
| cmpq $42, bar |
| |
| // CHECK: Disassembly of section push: |
| // CHECK-NEXT: push: |
| // CHECK-NEXT: 0: 66 6a 80 pushw $-128 |
| // CHECK-NEXT: 3: 66 6a 7f pushw $127 |
| // CHECK-NEXT: 6: 6a 80 pushq $-128 |
| // CHECK-NEXT: 8: 6a 7f pushq $127 |
| .section push,"x" |
| pushw $-128 |
| pushw $127 |
| push $-128 |
| push $127 |
