6 files changed, 109 insertions, 0 deletions
diff --git a/test/MC/X86/fde-reloc.s b/test/MC/X86/fde-reloc.s
new file mode 100644
index 0000000000..63ac976621
--- /dev/null
+++ b/test/MC/X86/fde-reloc.s
@@ -0,0 +1,11 @@
+// RUN: llvm-mc -filetype=obj %s -o - -triple x86_64-pc-linux | llvm-objdump -r - | FileCheck --check-prefix=X86-64 %s
+// RUN: llvm-mc -filetype=obj %s -o - -triple i686-pc-linux | llvm-objdump -r - | FileCheck --check-prefix=I686 %s
+
+// PR15448
+
+func:
+	.cfi_startproc
+	.cfi_endproc
+
+// X86-64: R_X86_64_PC32
+// I686: R_386_PC32
diff --git a/test/MC/X86/intel-syntax-encoding.s b/test/MC/X86/intel-syntax-encoding.s
index 03b0551164..9806ac3802 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/x86-32-ms-inline-asm.s b/test/MC/X86/x86-32-ms-inline-asm.s
index 5524c706cc..d912915c58 100644
--- a/test/MC/X86/x86-32-ms-inline-asm.s
+++ b/test/MC/X86/x86-32-ms-inline-asm.s
@@ -57,6 +57,26 @@ _t21:                                   ## @t21
 // CHECK: movl 4(%esi,%eax,2), %eax
 // CHECK: # encoding: [0x8b,0x44,0x46,0x04]
 
+	mov eax, 4[esi + 2*eax + 4]
+// CHECK: movl 8(%esi,%eax,2), %eax
+// CHECK: # encoding: [0x8b,0x44,0x46,0x08]
+	mov eax, 4[esi][2*eax + 4]
+// CHECK: movl 8(%esi,%eax,2), %eax
+// CHECK: # encoding: [0x8b,0x44,0x46,0x08]
+	mov eax, 4[esi + 2*eax][4]
+// CHECK: movl 8(%esi,%eax,2), %eax
+// CHECK: # encoding: [0x8b,0x44,0x46,0x08]
+	mov eax, 4[esi][2*eax][4]
+// CHECK: movl 8(%esi,%eax,2), %eax
+// CHECK: # encoding: [0x8b,0x44,0x46,0x08]
+	mov eax, 4[esi][2*eax][4][8]
+// CHECK: movl 16(%esi,%eax,2), %eax
+// CHECK: # encoding: [0x8b,0x44,0x46,0x10]
+
+    prefetchnta 64[eax]
+// CHECK: prefetchnta 64(%eax)
+// CHECK: # encoding: [0x0f,0x18,0x40,0x40]
+        
     pusha
 // CHECK: pushal
 // CHECK: # encoding: [0x60]
diff --git a/test/MC/X86/x86_64-fma4-encoding.s b/test/MC/X86/x86_64-fma4-encoding.s
index f7ee351ab5..c9bd954e90 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_64-rand-encoding.s b/test/MC/X86/x86_64-rand-encoding.s
new file mode 100644
index 0000000000..3a8cb817bc
--- /dev/null
+++ b/test/MC/X86/x86_64-rand-encoding.s
@@ -0,0 +1,49 @@
+// RUN: llvm-mc -triple x86_64-unknown-unknown --show-encoding %s | FileCheck %s
+
+// CHECK: rdrandw %ax
+// CHECK: encoding: [0x66,0x0f,0xc7,0xf0]
+          rdrand %ax
+
+// CHECK: rdrandl %eax
+// CHECK: encoding: [0x0f,0xc7,0xf0]
+          rdrand %eax
+
+// CHECK: rdrandq %rax
+// CHECK: encoding: [0x48,0x0f,0xc7,0xf0]
+          rdrand %rax
+
+// CHECK: rdrandw %r11w
+// CHECK: encoding: [0x66,0x41,0x0f,0xc7,0xf3]
+          rdrand %r11w
+
+// CHECK: rdrandl %r11d
+// CHECK: encoding: [0x41,0x0f,0xc7,0xf3]
+          rdrand %r11d
+
+// CHECK: rdrandq %r11
+// CHECK: encoding: [0x49,0x0f,0xc7,0xf3]
+          rdrand %r11
+
+// CHECK: rdseedw %ax
+// CHECK: encoding: [0x66,0x0f,0xc7,0xf8]
+          rdseed %ax
+
+// CHECK: rdseedl %eax
+// CHECK: encoding: [0x0f,0xc7,0xf8]
+          rdseed %eax
+
+// CHECK: rdseedq %rax
+// CHECK: encoding: [0x48,0x0f,0xc7,0xf8]
+          rdseed %rax
+
+// CHECK: rdseedw %r11w
+// CHECK: encoding: [0x66,0x41,0x0f,0xc7,0xfb]
+          rdseed %r11w
+
+// CHECK: rdseedl %r11d
+// CHECK: encoding: [0x41,0x0f,0xc7,0xfb]
+          rdseed %r11d
+
+// CHECK: rdseedq %r11
+// CHECK: encoding: [0x49,0x0f,0xc7,0xfb]
+          rdseed %r11
diff --git a/test/MC/X86/x86_64-rtm-encoding.s b/test/MC/X86/x86_64-rtm-encoding.s
index 44d6bacb7f..d9975d67b3 100644
--- a/test/MC/X86/x86_64-rtm-encoding.s
+++ b/test/MC/X86/x86_64-rtm-encoding.s
@@ -8,6 +8,10 @@
 // CHECK: encoding: [0x0f,0x01,0xd5]
 	xend
 
+// CHECK: xtest
+// CHECK: encoding: [0x0f,0x01,0xd6]
+	xtest
+
 // CHECK: xabort
 // CHECK: encoding: [0xc6,0xf8,0x0d]
 	xabort $13