[llvm] r325993 - bpf: New disassembler testcases for 32-bit subregister support
Yonghong Song via llvm-commits
llvm-commits at lists.llvm.org
Fri Feb 23 15:49:35 PST 2018
Author: yhs
Date: Fri Feb 23 15:49:35 2018
New Revision: 325993
URL: http://llvm.org/viewvc/llvm-project?rev=325993&view=rev
Log:
bpf: New disassembler testcases for 32-bit subregister support
This patch test disassembler output for load/store instructions when
-mattr=+alu32 specified for which we want to use "w" register format.
Also, this patch extended the existing insn-unit.s and insn-unit-32.s to
make sure disassemblers for all other instructions are not affected.
Signed-off-by: Jiong Wang <jiong.wang at netronome.com>
Reviewed-by: Yonghong Song <yhs at fb.com>
Added:
llvm/trunk/test/MC/BPF/load-store-32.s
Modified:
llvm/trunk/test/MC/BPF/insn-unit-32.s
llvm/trunk/test/MC/BPF/insn-unit.s
Modified: llvm/trunk/test/MC/BPF/insn-unit-32.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/BPF/insn-unit-32.s?rev=325993&r1=325992&r2=325993&view=diff
==============================================================================
--- llvm/trunk/test/MC/BPF/insn-unit-32.s (original)
+++ llvm/trunk/test/MC/BPF/insn-unit-32.s Fri Feb 23 15:49:35 2018
@@ -1,5 +1,6 @@
# RUN: llvm-mc -triple bpfel -filetype=obj -o %t %s
# RUN: llvm-objdump -d -r %t | FileCheck %s
+# RUN: llvm-objdump -mattr=+alu32 -d -r %t | FileCheck %s
// ======== BPF_ALU Class ========
w1 = -w1 // BPF_NEG
Modified: llvm/trunk/test/MC/BPF/insn-unit.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/BPF/insn-unit.s?rev=325993&r1=325992&r2=325993&view=diff
==============================================================================
--- llvm/trunk/test/MC/BPF/insn-unit.s (original)
+++ llvm/trunk/test/MC/BPF/insn-unit.s Fri Feb 23 15:49:35 2018
@@ -1,5 +1,6 @@
# RUN: llvm-mc -triple bpfel -filetype=obj -o %t %s
-# RUN: llvm-objdump -d -r %t | FileCheck %s
+# RUN: llvm-objdump -d -r %t | FileCheck --check-prefixes CHECK,CHECK-64 %s
+# RUN: llvm-objdump -mattr=+alu32 -d -r %t | FileCheck --check-prefixes CHECK,CHECK-32 %s
// ======== BPF_LD Class ========
// Some extra whitespaces are deliberately added to test the parser.
@@ -33,9 +34,12 @@
r6 = *(u16 *)(r1 + 8) // BPF_LDX | BPF_H
r7 = *(u32 *)(r2 + 16) // BPF_LDX | BPF_W
r8 = *(u64 *)(r3 - 30) // BPF_LDX | BPF_DW
-// CHECK: 71 05 00 00 00 00 00 00 r5 = *(u8 *)(r0 + 0)
-// CHECK: 69 16 08 00 00 00 00 00 r6 = *(u16 *)(r1 + 8)
-// CHECK: 61 27 10 00 00 00 00 00 r7 = *(u32 *)(r2 + 16)
+// CHECK-64: 71 05 00 00 00 00 00 00 r5 = *(u8 *)(r0 + 0)
+// CHECK-64: 69 16 08 00 00 00 00 00 r6 = *(u16 *)(r1 + 8)
+// CHECK-64: 61 27 10 00 00 00 00 00 r7 = *(u32 *)(r2 + 16)
+// CHECK-32: 71 05 00 00 00 00 00 00 w5 = *(u8 *)(r0 + 0)
+// CHECK-32: 69 16 08 00 00 00 00 00 w6 = *(u16 *)(r1 + 8)
+// CHECK-32: 61 27 10 00 00 00 00 00 w7 = *(u32 *)(r2 + 16)
// CHECK: 79 38 e2 ff 00 00 00 00 r8 = *(u64 *)(r3 - 30)
// ======== BPF_STX Class ========
@@ -43,9 +47,12 @@
*(u16 *)(r1 + 8) = r8 // BPF_STX | BPF_H
*(u32 *)(r2 + 16) = r9 // BPF_STX | BPF_W
*(u64 *)(r3 - 30) = r10 // BPF_STX | BPF_DW
-// CHECK: 73 70 00 00 00 00 00 00 *(u8 *)(r0 + 0) = r7
-// CHECK: 6b 81 08 00 00 00 00 00 *(u16 *)(r1 + 8) = r8
-// CHECK: 63 92 10 00 00 00 00 00 *(u32 *)(r2 + 16) = r9
+// CHECK-64: 73 70 00 00 00 00 00 00 *(u8 *)(r0 + 0) = r7
+// CHECK-64: 6b 81 08 00 00 00 00 00 *(u16 *)(r1 + 8) = r8
+// CHECK-64: 63 92 10 00 00 00 00 00 *(u32 *)(r2 + 16) = r9
+// CHECK-32: 73 70 00 00 00 00 00 00 *(u8 *)(r0 + 0) = w7
+// CHECK-32: 6b 81 08 00 00 00 00 00 *(u16 *)(r1 + 8) = w8
+// CHECK-32: 63 92 10 00 00 00 00 00 *(u32 *)(r2 + 16) = w9
// CHECK: 7b a3 e2 ff 00 00 00 00 *(u64 *)(r3 - 30) = r10
lock *(u32 *)(r2 + 16) += r9 // BPF_STX | BPF_W | BPF_XADD
Added: llvm/trunk/test/MC/BPF/load-store-32.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/BPF/load-store-32.s?rev=325993&view=auto
==============================================================================
--- llvm/trunk/test/MC/BPF/load-store-32.s (added)
+++ llvm/trunk/test/MC/BPF/load-store-32.s Fri Feb 23 15:49:35 2018
@@ -0,0 +1,25 @@
+# RUN: llvm-mc -triple bpfel -filetype=obj -o %t %s
+# RUN: llvm-objdump -mattr=+alu32 -d -r %t | FileCheck --check-prefix=CHECK-32 %s
+# RUN: llvm-objdump -d -r %t | FileCheck %s
+
+// ======== BPF_LDX Class ========
+ w5 = *(u8 *)(r0 + 0) // BPF_LDX | BPF_B
+ w6 = *(u16 *)(r1 + 8) // BPF_LDX | BPF_H
+ w7 = *(u32 *)(r2 + 16) // BPF_LDX | BPF_W
+// CHECK-32: 71 05 00 00 00 00 00 00 w5 = *(u8 *)(r0 + 0)
+// CHECK-32: 69 16 08 00 00 00 00 00 w6 = *(u16 *)(r1 + 8)
+// CHECK-32: 61 27 10 00 00 00 00 00 w7 = *(u32 *)(r2 + 16)
+// CHECK: 71 05 00 00 00 00 00 00 r5 = *(u8 *)(r0 + 0)
+// CHECK: 69 16 08 00 00 00 00 00 r6 = *(u16 *)(r1 + 8)
+// CHECK: 61 27 10 00 00 00 00 00 r7 = *(u32 *)(r2 + 16)
+
+// ======== BPF_STX Class ========
+ *(u8 *)(r0 + 0) = w7 // BPF_STX | BPF_B
+ *(u16 *)(r1 + 8) = w8 // BPF_STX | BPF_H
+ *(u32 *)(r2 + 16) = w9 // BPF_STX | BPF_W
+// CHECK-32: 73 70 00 00 00 00 00 00 *(u8 *)(r0 + 0) = w7
+// CHECK-32: 6b 81 08 00 00 00 00 00 *(u16 *)(r1 + 8) = w8
+// CHECK-32: 63 92 10 00 00 00 00 00 *(u32 *)(r2 + 16) = w9
+// CHECK: 73 70 00 00 00 00 00 00 *(u8 *)(r0 + 0) = r7
+// CHECK: 6b 81 08 00 00 00 00 00 *(u16 *)(r1 + 8) = r8
+// CHECK: 63 92 10 00 00 00 00 00 *(u32 *)(r2 + 16) = r9
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