diff options
Diffstat (limited to 'test/MC/X86')
| -rw-r--r-- | test/MC/X86/AlignedBundling/long-nop-pad.s | 27 | ||||
| -rw-r--r-- | test/MC/X86/intel-syntax-encoding.s | 21 | ||||
| -rw-r--r-- | test/MC/X86/x86_64-fma4-encoding.s | 4 | ||||
| -rw-r--r-- | test/MC/X86/x86_long_nop.s | 15 |
4 files changed, 67 insertions, 0 deletions
diff --git a/test/MC/X86/AlignedBundling/long-nop-pad.s b/test/MC/X86/AlignedBundling/long-nop-pad.s new file mode 100644 index 0000000..ea33e28 --- /dev/null +++ b/test/MC/X86/AlignedBundling/long-nop-pad.s @@ -0,0 +1,27 @@ +# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ +# RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s + +# Test that long nops are generated for padding where possible. + + .text +foo: + .bundle_align_mode 5 + +# This callq instruction is 5 bytes long + .bundle_lock align_to_end + callq bar + .bundle_unlock +# To align this group to a bundle end, we need a 15-byte NOP and a 12-byte NOP. +# CHECK: 0: nop +# CHECK-NEXT: f: nop +# CHECK-NEXT: 1b: callq + +# This push instruction is 1 byte long + .bundle_lock align_to_end + push %rax + .bundle_unlock +# To align this group to a bundle end, we need two 15-byte NOPs, and a 1-byte. +# CHECK: 20: nop +# CHECK-NEXT: 2f: nop +# CHECK-NEXT: 3e: nop +# CHECK-NEXT: 3f: pushq diff --git a/test/MC/X86/intel-syntax-encoding.s b/test/MC/X86/intel-syntax-encoding.s index 03b0551..9806ac3 100644 --- a/test/MC/X86/intel-syntax-encoding.s +++ b/test/MC/X86/intel-syntax-encoding.s @@ -31,6 +31,27 @@ // CHECK: encoding: [0x48,0x83,0xc0,0xf4] add rax, -12 +// CHECK: encoding: [0x66,0x83,0xd0,0xf4] + adc ax, -12 +// CHECK: encoding: [0x83,0xd0,0xf4] + adc eax, -12 +// CHECK: encoding: [0x48,0x83,0xd0,0xf4] + adc rax, -12 + +// CHECK: encoding: [0x66,0x83,0xd8,0xf4] + sbb ax, -12 +// CHECK: encoding: [0x83,0xd8,0xf4] + sbb eax, -12 +// CHECK: encoding: [0x48,0x83,0xd8,0xf4] + sbb rax, -12 + +// CHECK: encoding: [0x66,0x83,0xf8,0xf4] + cmp ax, -12 +// CHECK: encoding: [0x83,0xf8,0xf4] + cmp eax, -12 +// CHECK: encoding: [0x48,0x83,0xf8,0xf4] + cmp rax, -12 + LBB0_3: // CHECK: encoding: [0xeb,A] jmp LBB0_3 diff --git a/test/MC/X86/x86_64-fma4-encoding.s b/test/MC/X86/x86_64-fma4-encoding.s index f7ee351..c9bd954 100644 --- a/test/MC/X86/x86_64-fma4-encoding.s +++ b/test/MC/X86/x86_64-fma4-encoding.s @@ -25,6 +25,10 @@ // CHECK: encoding: [0xc4,0xe3,0xf9,0x6b,0xc2,0x10] vfmaddsd %xmm2, %xmm1, %xmm0, %xmm0 +// CHECK: vfmaddsd %xmm10, %xmm1, %xmm0, %xmm0 +// CHECK: encoding: [0xc4,0xc3,0xf9,0x6b,0xc2,0x10] + vfmaddsd %xmm10, %xmm1, %xmm0, %xmm0 + // CHECK: vfmaddps (%rcx), %xmm1, %xmm0, %xmm0 // CHECK: encoding: [0xc4,0xe3,0xf9,0x68,0x01,0x10] vfmaddps (%rcx), %xmm1, %xmm0, %xmm0 diff --git a/test/MC/X86/x86_long_nop.s b/test/MC/X86/x86_long_nop.s new file mode 100644 index 0000000..ac1bc08 --- /dev/null +++ b/test/MC/X86/x86_long_nop.s @@ -0,0 +1,15 @@ +# RUN: llvm-mc -filetype=obj -arch=x86 -triple=x86_64-pc-linux-gnu %s | llvm-objdump -d -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -arch=x86 -triple=i686-pc-linux-gnu %s | llvm-objdump -d -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -arch=x86 -triple=x86_64-apple-darwin10.0 %s | llvm-objdump -d -no-show-raw-insn - | FileCheck %s +# RUN: llvm-mc -filetype=obj -arch=x86 -triple=i686-apple-darwin8 %s | llvm-objdump -d -no-show-raw-insn - | FileCheck %s + +# Ensure alignment directives also emit sequences of 15-byte NOPs on processors +# capable of using long NOPs. +inc %eax +.p2align 5 +inc %eax +# CHECK: 0: inc +# CHECK-NEXT: 1: nop +# CHECK-NEXT: 10: nop +# CHECK-NEXT: 1f: nop +# CHECK-NEXT: 20: inc |