[mips64][mcjit] Add N64R6 relocations tests and fix N64R2 tests
authorPetar Jovanovic <petar.jovanovic@imgtec.com>
Fri, 28 Aug 2015 18:02:53 +0000 (18:02 +0000)
committerPetar Jovanovic <petar.jovanovic@imgtec.com>
Fri, 28 Aug 2015 18:02:53 +0000 (18:02 +0000)
This patch adds a test for MIPS64R6 relocations, it corrects check
expressions for R_MIPS_26 and R_MIPS_PC16 relocations in MIPS64R2 test, and
it adds run for big endian in MIPS64R2 test.

Patch by Vladimir Radosavljevic.

Differential Revision: http://reviews.llvm.org/D11217

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246311 91177308-0d34-0410-b5e6-96231b3b80d8

lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
test/ExecutionEngine/RuntimeDyld/Mips/ELF_Mips64r2N64_PIC_relocations.s
test/ExecutionEngine/RuntimeDyld/Mips/ELF_N64R6_relocations.s [new file with mode: 0644]

index 7dc94e3..d9b02cc 100644 (file)
@@ -684,11 +684,11 @@ RuntimeDyldELF::evaluateMIPS64Relocation(const SectionEntry &Section,
   }
   case ELF::R_MIPS_PC18_S3: {
     uint64_t FinalAddress = (Section.LoadAddress + Offset);
-    return ((Value + Addend - ((FinalAddress | 7) ^ 7)) >> 3) & 0x3ffff;
+    return ((Value + Addend - (FinalAddress & ~0x7)) >> 3) & 0x3ffff;
   }
   case ELF::R_MIPS_PC19_S2: {
     uint64_t FinalAddress = (Section.LoadAddress + Offset);
-    return ((Value + Addend - FinalAddress) >> 2) & 0x7ffff;
+    return ((Value + Addend - (FinalAddress & ~0x3)) >> 2) & 0x7ffff;
   }
   case ELF::R_MIPS_PC21_S2: {
     uint64_t FinalAddress = (Section.LoadAddress + Offset);
index 4d71b64..294ea3e 100644 (file)
@@ -2,6 +2,10 @@
 # RUN: llc -mtriple=mips64el-unknown-linux -relocation-model=pic -filetype=obj -o %T/test_ELF_ExternalFunction_Mips64N64.o %S/Inputs/ExternalFunction.ll
 # RUN: llvm-rtdyld -triple=mips64el-unknown-linux -verify -map-section test_ELF_Mips64N64.o,.text=0x1000 -map-section test_ELF_ExternalFunction_Mips64N64.o,.text=0x10000 -check=%s %/T/test_ELF_Mips64N64.o %T/test_ELF_ExternalFunction_Mips64N64.o
 
+# RUN: llvm-mc -triple=mips64-unknown-linux -relocation-model=pic -code-model=small -filetype=obj -o %T/test_ELF_Mips64N64.o %s
+# RUN: llc -mtriple=mips64-unknown-linux -relocation-model=pic -filetype=obj -o %T/test_ELF_ExternalFunction_Mips64N64.o %S/Inputs/ExternalFunction.ll
+# RUN: llvm-rtdyld -triple=mips64-unknown-linux -verify -map-section test_ELF_Mips64N64.o,.text=0x1000 -map-section test_ELF_ExternalFunction_Mips64N64.o,.text=0x10000 -check=%s %/T/test_ELF_Mips64N64.o %T/test_ELF_ExternalFunction_Mips64N64.o
+
        .data
 # Test R_MIPS_PC32 relocation.
 # rtdyld-check: *{4}(R_MIPS_PC32) = (foo - R_MIPS_PC32)[31:0]
@@ -39,7 +43,7 @@ bar:
        sd      $4, 8($fp)
 
 # Test R_MIPS_26 relocation.
-# rtdyld-check:  decode_operand(insn1, 0)[25:0] = foo
+# rtdyld-check:  decode_operand(insn1, 0)[27:0] = foo[27:0]
 insn1:
        .option pic0
        jal   foo
@@ -47,7 +51,7 @@ insn1:
        nop
 
 # Test R_MIPS_PC16 relocation.
-# rtdyld-check:  decode_operand(insn2, 1)[15:0] = foo - insn2
+# rtdyld-check:  decode_operand(insn2, 1)[17:0] = (foo - insn2)[17:0]
 insn2:
        bal   foo
        nop
diff --git a/test/ExecutionEngine/RuntimeDyld/Mips/ELF_N64R6_relocations.s b/test/ExecutionEngine/RuntimeDyld/Mips/ELF_N64R6_relocations.s
new file mode 100644 (file)
index 0000000..2d5d09a
--- /dev/null
@@ -0,0 +1,54 @@
+# RUN: llvm-mc -triple=mips64el-unknown-linux -mcpu=mips64r6 -relocation-model=pic -code-model=small -filetype=obj -o %T/test_ELF_N64R6.o %s
+# RUN: llc -mtriple=mips64el-unknown-linux -mcpu=mips64r6 -relocation-model=pic -filetype=obj -o %T/test_ELF_ExternalFunction_N64R6.o %S/Inputs/ExternalFunction.ll
+# RUN: llvm-rtdyld -triple=mips64el-unknown-linux -mcpu=mips64r6 -verify -map-section test_ELF_N64R6.o,.text=0x1000 -map-section test_ELF_ExternalFunction_N64R6.o,.text=0x10000 -check=%s %/T/test_ELF_N64R6.o %T/test_ELF_ExternalFunction_N64R6.o
+
+# RUN: llvm-mc -triple=mips64-unknown-linux -mcpu=mips64r6 -relocation-model=pic -code-model=small -filetype=obj -o %T/test_ELF_N64R6.o %s
+# RUN: llc -mtriple=mips64-unknown-linux -mcpu=mips64r6 -relocation-model=pic -filetype=obj -o %T/test_ELF_ExternalFunction_N64R6.o %S/Inputs/ExternalFunction.ll
+# RUN: llvm-rtdyld -triple=mips64-unknown-linux -mcpu=mips64r6 -verify -map-section test_ELF_N64R6.o,.text=0x1000 -map-section test_ELF_ExternalFunction_N64R6.o,.text=0x10000 -check=%s %/T/test_ELF_N64R6.o %T/test_ELF_ExternalFunction_N64R6.o
+
+       .text
+       .abicalls
+       .nan    2008
+       .text
+       .set    nomicromips
+       .set    nomips16
+       .set    noreorder
+       .set    nomacro
+       .set    noat
+
+       .align  3
+       .globl  bar
+       .type   bar,@function
+
+bar:
+# Test R_MIPS_PC18_S3 relocation.
+# rtdyld-check:  decode_operand(R_MIPS_PC18_S3, 1)[20:0] = (foo - R_MIPS_PC18_S3)[20:0]
+R_MIPS_PC18_S3:
+       ldpc $6,foo
+
+# Test R_MIPS_PC19_S2 relocation.
+# rtdyld-check:  decode_operand(R_MIPS_PC19_S2, 1)[20:0] = (foo - R_MIPS_PC19_S2)[20:0]
+R_MIPS_PC19_S2:
+       lwpc $6,foo
+
+# Test R_MIPS_PC21_S2 relocation.
+# rtdyld-check:  decode_operand(R_MIPS_PC21_S2, 1)[22:0] = (foo - next_pc(R_MIPS_PC21_S2))[22:0]
+R_MIPS_PC21_S2:
+       bnezc   $5,foo
+
+# Test R_MIPS_PC26_S2 relocation.
+# rtdyld-check:  decode_operand(R_MIPS_PC26_S2, 0)[27:0] = (foo - next_pc(R_MIPS_PC26_S2))[27:0]
+R_MIPS_PC26_S2:
+       balc    foo
+
+# Test R_MIPS_PCHI16 relocation.
+# rtdyld-check:  decode_operand(R_MIPS_PCHI16, 1)[15:0] = (foo - R_MIPS_PCHI16 + 0x8000)[31:16]
+R_MIPS_PCHI16:
+       aluipc $5, %pcrel_hi(foo)
+
+# Test R_MIPS_PCLO16 relocation.
+# rtdyld-check:  decode_operand(R_MIPS_PCLO16, 2)[15:0] = (foo - R_MIPS_PCLO16)[15:0]
+R_MIPS_PCLO16:
+       addiu  $5, $5, %pcrel_lo(foo)
+
+       .size   bar, .-bar