https://sourceware.org/bugzilla/show_bug.cgi?id=17843
Bug ID: 17843
Summary: GAS 2.24.0 incorrectly rejects a legal asm sequence
Product: binutils
Version: 2.24
Status: NEW
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: geir at cray dot com
GAS 2.24.0 incorrectly rejects a legal asm sequence:
$ cat test_tls.c
__thread int tls_var;
int get_tls_var() {
return tls_var;
}
$ clang --target=aarch64 -S test_tls.c
$ cat test_tls.s
.text
.file "test_tls.c"
.globl get_tls_var
.align 2
.type get_tls_var,@function
get_tls_var: // @get_tls_var
// BB#0: // %entry
movz x8, #:tprel_g1:tls_var
movk x8, #:tprel_g0_nc:tls_var
mrs x9, TPIDR_EL0
ldr w10, [x9, x8]
mov w0, w10
ret
.Ltmp1:
.size get_tls_var, .Ltmp1-get_tls_var
.type tls_var,@object // @tls_var
.section .tbss,"awT",@nobits
.globl tls_var
.align 2
tls_var:
.word 0 // 0x0
.size tls_var, 4
.ident "clang version 3.5.0 (tags/RELEASE_350/final)"
$ aarch64-linux-gnu-as test_tls.s
test_tls.s: Assembler messages:
test_tls.s:9: Error: the specified relocation type is not allowed for MOVK at
operand 2 -- `movk x8,#:tprel_g0_nc:tls_var'
$
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