llvm-project/llvm/test/MC/AsmParser/exprs.s

// RUN: llvm-mc -triple i386-apple-darwin %s

.macro check_expr
  .if ($0) != ($1)
        .abort Unexpected $0 != $1.
  .endif
.endmacro

        .text
g:
h:
j:
k:
        .data
        check_expr !1 + 2, 2
        check_expr !0, 1
        check_expr ~0, -1
        check_expr -1, ~0
        check_expr +1, 1
        check_expr 1 + 2, 3
        check_expr 1 & 3, 1
        check_expr 4 / 2, 2
        check_expr 4 / -2, -2
        check_expr 1 == 1, -1
        check_expr 1 == 0, 0
        check_expr 1 > 0, -1
        check_expr 1 >= 1, -1
        check_expr 1 < 2, -1
        check_expr 1 <= 1, -1
        check_expr 4 % 3, 1
        check_expr 2 * 2, 4
        check_expr 2 != 2, 0
        check_expr 2 <> 2, 0
        check_expr 1 | 2, 3
        check_expr 1 << 1, 2
        check_expr 2 >> 1, 1
        check_expr (~0 >> 62), 3
        check_expr 3 - 2, 1
        check_expr 1 ^ 3, 2
        check_expr 1 && 2, 1
        check_expr 3 && 0, 0
        check_expr 0 && 1, 0
        check_expr 1 || 2, 1
        check_expr 0 || 1, 1
        check_expr 0 || 0, 0
        check_expr 1 + 2 < 3 + 4, -1
        check_expr 1 << 8 - 1, 128
        check_expr 3 * 9 - 2 * 9 + 1, 10

        .set c, 10
        check_expr c + 1, 11

        d = e + 10
        .long d

        f = g - h + 5
        .long f

        i = (j + 10) - (k + 2)
        .long i

        l = m - n + 4

        .text
m:
n:
        nop


        movw	$8, (42)+66(%eax)

// "." support:
_f0:
L0:
        jmp L1
        .long . - L0
L1:
        jmp A
        .long . - L1
AsmParser: Disable Darwin-style macro argument expansion on non-darwin targets. There is code in the wild that relies on $0 not being expanded. llvm-svn: 201784 2014-02-20 21:36:32 +08:00			`// RUN: llvm-mc -triple i386-apple-darwin %s`
llvm-mc: Accept relocatable expressions for .org, assignments, .byte, etc. llvm-svn: 74498 2009-06-30 10:10:03 +08:00
MC/AsmParser: Rewrite test to actually check some parts of expression parsing, now that we have macros and friends. Uncovered a bug in macro expansion... llvm-svn: 117295 2010-10-26 04:18:41 +08:00			`.macro check_expr`
			`.if ($0) != ($1)`
			`.abort Unexpected $0 != $1.`
			`.endif`
			`.endmacro`
Tidy up. Whitespace. llvm-svn: 138207 2011-08-21 00:10:09 +08:00
llvm-mc: Accept relocatable expressions for .org, assignments, .byte, etc. llvm-svn: 74498 2009-06-30 10:10:03 +08:00			`.text`
			`g:`
			`h:`
			`j:`
Tidy up. Whitespace. llvm-svn: 138207 2011-08-21 00:10:09 +08:00			`k:`
llvm-mc: Accept relocatable expressions for .org, assignments, .byte, etc. llvm-svn: 74498 2009-06-30 10:10:03 +08:00			`.data`
MC/AsmParser: Rewrite test to actually check some parts of expression parsing, now that we have macros and friends. Uncovered a bug in macro expansion... llvm-svn: 117295 2010-10-26 04:18:41 +08:00			`check_expr !1 + 2, 2`
			`check_expr !0, 1`
tweak test. llvm-svn: 117297 2010-10-26 04:18:49 +08:00			`check_expr ~0, -1`
			`check_expr -1, ~0`
MC/AsmParser: Rewrite test to actually check some parts of expression parsing, now that we have macros and friends. Uncovered a bug in macro expansion... llvm-svn: 117295 2010-10-26 04:18:41 +08:00			`check_expr +1, 1`
			`check_expr 1 + 2, 3`
			`check_expr 1 & 3, 1`
MC/AsmLexer: Fix bug in source location for Slash token. llvm-svn: 117298 2010-10-26 04:18:53 +08:00			`check_expr 4 / 2, 2`
			`check_expr 4 / -2, -2`
Correct compatibility with the GNU Assembler's handling of comparison ops GAS returns -1 for a comparison operator if the result is true and 0 if false. https://www.sourceware.org/binutils/docs-2.12/as.info/Infix-Ops.html#Infix%20Ops llvm-svn: 332215 2018-05-14 13:25:36 +08:00			`check_expr 1 == 1, -1`
MC/AsmParser: Rewrite test to actually check some parts of expression parsing, now that we have macros and friends. Uncovered a bug in macro expansion... llvm-svn: 117295 2010-10-26 04:18:41 +08:00			`check_expr 1 == 0, 0`
Correct compatibility with the GNU Assembler's handling of comparison ops GAS returns -1 for a comparison operator if the result is true and 0 if false. https://www.sourceware.org/binutils/docs-2.12/as.info/Infix-Ops.html#Infix%20Ops llvm-svn: 332215 2018-05-14 13:25:36 +08:00			`check_expr 1 > 0, -1`
			`check_expr 1 >= 1, -1`
			`check_expr 1 < 2, -1`
			`check_expr 1 <= 1, -1`
MC/AsmParser: Rewrite test to actually check some parts of expression parsing, now that we have macros and friends. Uncovered a bug in macro expansion... llvm-svn: 117295 2010-10-26 04:18:41 +08:00			`check_expr 4 % 3, 1`
			`check_expr 2 * 2, 4`
			`check_expr 2 != 2, 0`
			`check_expr 2 <> 2, 0`
			`check_expr 1 \| 2, 3`
			`check_expr 1 << 1, 2`
			`check_expr 2 >> 1, 1`
[MC] Use LShr for constant evaluation of ">>" on non-arm64 darwin. Follow-up to r235963: this matches other assemblers and is less unexpected (e.g. PR23227). llvm-svn: 252681 2015-11-11 08:51:36 +08:00			`check_expr (~0 >> 62), 3`
MC/AsmParser: Rewrite test to actually check some parts of expression parsing, now that we have macros and friends. Uncovered a bug in macro expansion... llvm-svn: 117295 2010-10-26 04:18:41 +08:00			`check_expr 3 - 2, 1`
			`check_expr 1 ^ 3, 2`
			`check_expr 1 && 2, 1`
			`check_expr 3 && 0, 0`
			`check_expr 0 && 1, 0`
			`check_expr 1 \|\| 2, 1`
			`check_expr 0 \|\| 1, 1`
			`check_expr 0 \|\| 0, 0`
Correct compatibility with the GNU Assembler's handling of comparison ops GAS returns -1 for a comparison operator if the result is true and 0 if false. https://www.sourceware.org/binutils/docs-2.12/as.info/Infix-Ops.html#Infix%20Ops llvm-svn: 332215 2018-05-14 13:25:36 +08:00			`check_expr 1 + 2 < 3 + 4, -1`
Fix AsmParser binary precedence for shift operators. rdar://9976729 llvm-svn: 138208 2011-08-21 00:24:13 +08:00			`check_expr 1 << 8 - 1, 128`
Fix a bug in the MC asm parser evaluating expressions. It was treating: A = 9 B = 3 * A - 2 * A + 1 as B = 3 * A - (2 * A + 1) rdar://13816516 llvm-svn: 181366 2013-05-08 05:40:58 +08:00			`check_expr 3 * 9 - 2 * 9 + 1, 10`
Tidy up. Whitespace. llvm-svn: 138207 2011-08-21 00:10:09 +08:00
MC: Improve expression parsing and implement evaluation of absolute expressions. llvm-svn: 74448 2009-06-30 04:37:27 +08:00			`.set c, 10`
MC/AsmParser: Rewrite test to actually check some parts of expression parsing, now that we have macros and friends. Uncovered a bug in macro expansion... llvm-svn: 117295 2010-10-26 04:18:41 +08:00			`check_expr c + 1, 11`
llvm-mc: Accept relocatable expressions for .org, assignments, .byte, etc. llvm-svn: 74498 2009-06-30 10:10:03 +08:00
			`d = e + 10`
			`.long d`

			`f = g - h + 5`
			`.long f`

			`i = (j + 10) - (k + 2)`
			`.long i`
Tidy up. Whitespace. llvm-svn: 138207 2011-08-21 00:10:09 +08:00
llvm-mc: Symbols in a relocatable expression of the (a - b + cst) form are allowed to be undefined when the expression is seen, we cannot enforce the same-section requirement until the entire assembly file has been seen. llvm-svn: 74565 2009-07-01 06:49:27 +08:00			`l = m - n + 4`
Tidy up. Whitespace. llvm-svn: 138207 2011-08-21 00:10:09 +08:00
llvm-mc: Symbols in a relocatable expression of the (a - b + cst) form are allowed to be undefined when the expression is seen, we cannot enforce the same-section requirement until the entire assembly file has been seen. llvm-svn: 74565 2009-07-01 06:49:27 +08:00			`.text`
			`m:`
			`n:`
			`nop`
Tidy up. Whitespace. llvm-svn: 138207 2011-08-21 00:10:09 +08:00

fix a parsing problem on instructions like: movw $8, (_cost_table_-L97$pb)+66(%eax) After the parens, we could still have a binop. llvm-svn: 94345 2010-01-24 09:07:33 +08:00			`movw $8, (42)+66(%eax)`
implement mc asmparser support for '.', which gets the current PC. rdar://7834775 We now produce an identical .o file compared to the cctools assembler for something like this: _f0: L0: jmp L1 .long . - L0 L1: jmp A .long . - L1 .zerofill __DATA,_bss,A,0 llvm-svn: 101227 2010-04-14 12:40:28 +08:00
			`// "." support:`
			`_f0:`
			`L0:`
			`jmp L1`
			`.long . - L0`
			`L1:`
			`jmp A`
			`.long . - L1`