[lld] r331994 - [ELF][MIPS] Add test case to check N32 ABI PLT generation. NFC
Simon Atanasyan via llvm-commits
llvm-commits at lists.llvm.org
Thu May 10 08:56:22 PDT 2018
Author: atanasyan
Date: Thu May 10 08:56:22 2018
New Revision: 331994
URL: http://llvm.org/viewvc/llvm-project?rev=331994&view=rev
Log:
[ELF][MIPS] Add test case to check N32 ABI PLT generation. NFC
Added:
lld/trunk/test/ELF/mips-plt-n32.s
Added: lld/trunk/test/ELF/mips-plt-n32.s
URL: http://llvm.org/viewvc/llvm-project/lld/trunk/test/ELF/mips-plt-n32.s?rev=331994&view=auto
==============================================================================
--- lld/trunk/test/ELF/mips-plt-n32.s (added)
+++ lld/trunk/test/ELF/mips-plt-n32.s Thu May 10 08:56:22 2018
@@ -0,0 +1,43 @@
+# REQUIRES: mips
+
+# Check PLT entries generation in case of using N32 ABI.
+
+# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux \
+# RUN: -target-abi n32 %s -o %t1.o
+# RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux \
+# RUN: -target-abi n32 %S/Inputs/mips-dynamic.s -o %t2.o
+# RUN: ld.lld %t2.o -shared -o %t.so
+# RUN: ld.lld %t1.o %t.so -o %t.exe
+# RUN: llvm-objdump -d %t.exe | FileCheck %s --check-prefixes=DEFAULT,CHECK
+# RUN: ld.lld %t2.o -shared -o %t.so -z hazardplt
+# RUN: ld.lld %t1.o %t.so -o %t.exe -z hazardplt
+# RUN: llvm-objdump -d %t.exe | FileCheck %s --check-prefixes=HAZARDPLT,CHECK
+
+# CHECK: Disassembly of section .text:
+# CHECK-NEXT: __start:
+# CHECK-NEXT: 20000: 0c 00 80 0c jal 131120
+# ^-- 0x20030 gotplt[foo0]
+# CHECK-NEXT: 20004: 00 00 00 00 nop
+#
+# CHECK-NEXT: Disassembly of section .plt:
+# CHECK-NEXT: .plt:
+# CHECK-NEXT: 20010: 3c 0e 00 03 lui $14, 3
+# CHECK-NEXT: 20014: 8d d9 00 04 lw $25, 4($14)
+# CHECK-NEXT: 20018: 25 ce 00 04 addiu $14, $14, 4
+# CHECK-NEXT: 2001c: 03 0e c0 23 subu $24, $24, $14
+# CHECK-NEXT: 20020: 03 e0 78 25 move $15, $ra
+# CHECK-NEXT: 20024: 00 18 c0 82 srl $24, $24, 2
+# DEFAULT: 20028: 03 20 f8 09 jalr $25
+# HAZARDPLT: 20028: 03 20 fc 09 jalr.hb $25
+# CHECK-NEXT: 2002c: 27 18 ff fe addiu $24, $24, -2
+
+# CHECK-NEXT: 20030: 3c 0f 00 03 lui $15, 3
+# CHECK-NEXT: 20034: 8d f9 00 0c lw $25, 12($15)
+# DEFAULT: 20038: 03 20 00 08 jr $25
+# HAZARDPLT: 20038: 03 20 04 08 jr.hb $25
+# CHECK-NEXT: 2003c: 25 f8 00 0c addiu $24, $15, 12
+
+ .text
+ .global __start
+__start:
+ jal foo0 # R_MIPS_26 against 'foo0' from DSO
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