src/llvm-project/lld/test/ELF/linkerscript/operators.test

# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64 /dev/null -o %t.o
# RUN: ld.lld %t.o -T %s -o %t
# RUN: llvm-nm -p %t | FileCheck %s

SECTIONS {
  _start = .;
  unary =!0 + !0;  # Test space can be omitted between = and !
  negate =-1 - 1;
  not =~0xffff + 4;
  not_negate = -~5 + 1;
  multiplicative = 20 / 2 % 7;
  additive = 1 - 2 + -3 * -2;
  shift = 2 << 5 >> 1 << 2;
  shift2 = 2 << 69 >> 65;
  less = 1 < 0 ? 1 : 2;
  lesseq = 1<<0 <= 1>>0 ? 1 : 2;
  greater = 0 > 1 ? 1 : 2;
  greatereq = 1 >= 1 ? 1 : 2;
  eq = 1 == 1 ? 1 : 2;
  neq = 1 != 1 <= 1 ? 1 : 2;
  and = 3 & 4 > 0;
  or = 0xbb & 0xee | 1;
  xor = 3&3^5|1;
  logicaland = (0 && 0) + (0&&1)*2 + (1&& 0)*4 + (1 &&1) *8;
  logicaland2 = 1 & 0 && 1 | 1;
  logicalor = (0 || 0) + (0||1)*2 + (1|| 0)*4 + (1 ||1) *8;
  logicalor2 = 0 && 0 || 1 && 1;
  ternary1 = 0 ? 1 : 2 & 6;
  ternary2 = 1 ? 2?3:4 : 5?6 :7;

  mulassign =2;
  mulassign *=2;  # Test space can be omitted after *=
  divassign = 8;
  divassign /=2;
  plusassign =1;
  plusassign += 2;
  minusassign = 3;
  minusassign -= 1;
  lshiftassign = 1;
  lshiftassign <<= 1;
  lshiftassign <<= 65;  # arbitrarily reduced to 1
  rshiftassign = 24;
  rshiftassign >>= 1;
  rshiftassign >>= 130;  # arbitrarily reduced to 2
  andassign = 6;
  andassign &= 4;
  andassign&=4;
  xorassign = 6;
  xorassign ^= 3;
  xorassign ^=0;
  orassign = 4;
  orassign |= 1;
  orassign|=1;
  braces = 1 + (2 + 3) * 4;
  precedence1 = 1|0xff&1/1<<1+1*2;
  precedence2 = (1 | (0xff & (1 << (1 + (1 * 2)))));
  maxpagesize = CONSTANT (MAXPAGESIZE);
  commonpagesize = CONSTANT (COMMONPAGESIZE);
  . = 0xfff0;
  datasegmentalign = DATA_SEGMENT_ALIGN (0xffff, 0);
  datasegmentalign2 = DATA_SEGMENT_ALIGN (0, 0);
  _end = .;
  minus_rel = _end - 0x10;
  minus_abs = _end - _start;
  max = MAX(11, 22);
  min = MIN(11, 22);
  log2ceil0 = LOG2CEIL(0);
  log2ceil1 = LOG2CEIL(1);
  log2ceil2 = LOG2CEIL(2);
  log2ceil3 = LOG2CEIL(3);
  log2ceil4 = LOG2CEIL(4);
  log2ceil100000000 = LOG2CEIL(0x100000000);
  log2ceil100000001 = LOG2CEIL(0x100000001);
  log2ceilmax = LOG2CEIL(0xffffffffffffffff);
}

# CHECK:      0000000000000002 A unary
# CHECK-NEXT: fffffffffffffffe A negate
# CHECK-NEXT: ffffffffffff0004 A not
# CHECK-NEXT: 0000000000000007 A not_negate
# CHECK-NEXT: 0000000000000003 A multiplicative
# CHECK-NEXT: 0000000000000005 A additive
# CHECK-NEXT: 0000000000000080 A shift
# CHECK-NEXT: 0000000000000020 A shift
# CHECK-NEXT: 0000000000000002 A less
# CHECK-NEXT: 0000000000000001 A lesseq
# CHECK-NEXT: 0000000000000002 A greater
# CHECK-NEXT: 0000000000000001 A greatereq
# CHECK-NEXT: 0000000000000001 A eq
# CHECK-NEXT: 0000000000000002 A neq
# CHECK-NEXT: 0000000000000001 A and
# CHECK-NEXT: 00000000000000ab A or
# CHECK-NEXT: 0000000000000007 A xor
# CHECK-NEXT: 0000000000000008 A logicaland
# CHECK-NEXT: 0000000000000000 A logicaland2
# CHECK-NEXT: 000000000000000e A logicalor
# CHECK-NEXT: 0000000000000001 A logicalor2
# CHECK-NEXT: 0000000000000002 A ternary1
# CHECK-NEXT: 0000000000000003 A ternary2
# CHECK-NEXT: 0000000000000004 A mulassign
# CHECK-NEXT: 0000000000000004 A divassign
# CHECK-NEXT: 0000000000000003 A plusassign
# CHECK-NEXT: 0000000000000002 A minusassign
# CHECK-NEXT: 0000000000000004 A lshiftassign
# CHECK-NEXT: 0000000000000003 A rshiftassign
# CHECK-NEXT: 0000000000000004 A andassign
# CHECK-NEXT: 0000000000000005 A xorassign
# CHECK-NEXT: 0000000000000005 A orassign
# CHECK-NEXT: 0000000000000015 A braces
# CHECK-NEXT: 0000000000000009 A precedence1
# CHECK-NEXT: 0000000000000009 A precedence2
# CHECK-NEXT: 0000000000001000 A maxpagesize
# CHECK-NEXT: 0000000000001000 A commonpagesize
# CHECK-NEXT: 0000000000010000 A datasegmentalign
# CHECK-NEXT: 000000000000fff0 A datasegmentalign2
# CHECK-NEXT: 000000000000ffe0 T minus_rel
# CHECK-NEXT: 000000000000fff0 A minus_abs
# CHECK-NEXT: 0000000000000016 A max
# CHECK-NEXT: 000000000000000b A min
# CHECK-NEXT: 0000000000000000 A log2ceil0
# CHECK-NEXT: 0000000000000000 A log2ceil1
# CHECK-NEXT: 0000000000000001 A log2ceil2
# CHECK-NEXT: 0000000000000002 A log2ceil3
# CHECK-NEXT: 0000000000000002 A log2ceil4
# CHECK-NEXT: 0000000000000020 A log2ceil100000000
# CHECK-NEXT: 0000000000000021 A log2ceil100000001
# CHECK-NEXT: 0000000000000040 A log2ceilmax

## Mailformed number error.
# RUN: echo "SECTIONS { . = 0x12Q41; }" > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | \
# RUN:  FileCheck --check-prefix=NUMERR %s
# NUMERR: malformed number: 0x12Q41

## Missing closing bracket.
# RUN: echo "SECTIONS { . = (1; }" > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | \
# RUN:  FileCheck --check-prefix=BRACKETERR %s
# BRACKETERR: ) expected, but got ;

## Missing opening bracket.
# RUN: echo "SECTIONS { . = 1); }" > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | \
# RUN:  FileCheck --check-prefix=BRACKETERR2 %s
# BRACKETERR2: ; expected, but got )

## Empty expression.
# RUN: echo "SECTIONS { . = ; }" > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | \
# RUN:  FileCheck --check-prefix=ERREXPR %s
# ERREXPR: malformed number: ;

## Div by zero error.
# RUN: echo "SECTIONS { . = 1 / 0; }" > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | \
# RUN:  FileCheck --check-prefix=DIVZERO %s
# DIVZERO: {{.*}}.script:1: division by zero

## Mod by zero error.
# RUN: echo "SECTIONS { . = 1 % 0; }" > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | \
# RUN:  FileCheck --check-prefix=MODZERO %s
# MODZERO: {{.*}}.script:1: modulo by zero

## Broken ternary operator expression.
# RUN: echo "SECTIONS { . = 1 ? 2; }" > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | \
# RUN:  FileCheck --check-prefix=TERNERR %s
# TERNERR: : expected, but got ;

## Div by zero error.
# RUN: echo 'a = 1; a /= 0;' > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | FileCheck --check-prefix=DIVZERO %s

## GNU ld does not support %=.
# RUN: echo 'a = 1; a %= 0;' > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | FileCheck --check-prefix=UNKNOWN1 %s
## For now, we don't support ^= without a preceding space.
# RUN: echo 'a = 1; a^=0;' > %t.script
# RUN: not ld.lld %t.o -T %t.script -o /dev/null 2>&1 | FileCheck --check-prefix=UNKNOWN2 %s

# UNKNOWN1: error: {{.*}}:1: unknown directive: a{{$}}
# UNKNOWN2: error: {{.*}}:1: unknown directive: a^=0{{$}}