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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/112499] [11/12/13/14 Regression] ICE in output_operand: invalid expression as operand with addition of 2 differences of address of labels Date: Tue, 19 Mar 2024 16:49:58 +0000 [thread overview] Message-ID: <bug-112499-4-bCxJ3oC1cw@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-112499-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112499 --- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Or consider typedef unsigned __INTPTR_TYPE__ uintptr_t; volatile int v; int foo (int x) { static uintptr_t a = ((char *)&&l2 - (char *)&&l1) + ((char *)&&l4 - (char *)&&l3) + ((char *)&&l6 - (char *)&&l5); void *b[] = { &&l1, &&l2, &&l3, &&l4, &&l5, &&l6 }; l1: ++v; l2: ++v; l3: ++v; l4: ++v; l5: ++v; l6: ++v; if (x >= 0 && x <= 5) { x += 42; goto *b[x - 42]; } return a; } That is even older. r0-79351-g7771bb621aad43c7d0e21ccec4922dd3beac9cb6 still used to reject that: error: initializer element is not computable at load time r0-79390-g7ffb5e78794b6d8f8094d7c928e6f0e94b62cad6 already accepts but assembler doesn't handle that: pr112499-2.s:58: Error: invalid operands (*ABS* and .text sections) for `-' pr112499-2.s:58: Error: invalid operands (*ABS* and .text sections) for `-' pr112499-2.s:58: Error: invalid operands (.text and .text sections) for `+' .quad .L3-.L6-.L4-.L2+.L7+.L5 Guess we can only accept a subtraction of 2 labels, not addition of 2 labels or something more complex.
next prev parent reply other threads:[~2024-03-19 16:49 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-11-13 2:28 [Bug c/112499] New: GCC: 14: internal compiler error: output_operand: invalid expression as operand 141242068 at smail dot nju.edu.cn 2023-11-13 2:47 ` [Bug middle-end/112499] [11/12/13/14 Regression] ICE in output_operand: invalid expression as operand with addition of 2 differences of address of labels pinskia at gcc dot gnu.org 2023-11-13 2:47 ` pinskia at gcc dot gnu.org 2023-11-13 14:25 ` jakub at gcc dot gnu.org 2024-03-07 21:02 ` law at gcc dot gnu.org 2024-03-12 13:22 ` jakub at gcc dot gnu.org 2024-03-19 16:49 ` jakub at gcc dot gnu.org [this message] 2024-04-07 5:32 ` pinskia at gcc dot gnu.org
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