[llvm] [llvm][MC][ARM] Don't autoresolve fixups (PR #76574)

[Fangrui Song via llvm-commits]

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@@ -0,0 +1,37 @@
+@ RUN: not llvm-mc -filetype=obj --defsym=ERR=1 -o /dev/null %s 2>&1 -triple=thumbv7   | FileCheck %s --check-prefix=ERR
+@ RUN: not llvm-mc -filetype=obj --defsym=ERR=1 -o /dev/null %s 2>&1 -triple=thumbebv7 | FileCheck %s --check-prefix=ERR
+@ RUN: llvm-mc -filetype=obj -triple=armv7 %s -o %t
+@ RUN: llvm-readelf -r %t | FileCheck %s --check-prefix=ARM
+@ RUN: llvm-objdump -d --triple=armv7 %t | FileCheck %s --check-prefix=ARM_ADDEND
+@ RUN: llvm-mc -filetype=obj -triple=armebv7 %s -o %t
+@ RUN: llvm-readelf -r %t | FileCheck %s --check-prefix=ARM
+@ RUN: llvm-objdump -d --triple=armebv7 %t | FileCheck %s --check-prefix=ARM_ADDEND
+
+    .section .text.bar, "ax"
+    .balign 4
+    .global bar
+    .type bar, %function
+
+bar:
+    ldrd r0, r1, foo1    @ arm_pcrel_10_unscaled
+    ldrd r0, r1, foo2-8  @ arm_pcrel_10_unscaled
+    bx lr
+
+    .section .data.foo, "a", %progbits
+    .balign 4
+    .global foo1
+    .global foo2
+foo1:
+    .word 0x11223344, 0x55667788
+foo2:
+    .word 0x99aabbcc, 0xddeeff00
+
+.ifdef ERR
+  @ ERR:[[#@LINE-14]]:5: error: unsupported relocation type
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MaskRay wrote:

`-14` is too far way from the instruction. Move this closer to the instructions so that it's easier to fix an issue if a new line is added.

https://github.com/llvm/llvm-project/pull/76574