[PATCH] D83947: [ARM] halfword store hits llvm_unreachable with big-endian

[Simon Wallis via Phabricator via llvm-commits]

simonwallis2 created this revision.
simonwallis2 added a reviewer: olista01.
Herald added subscribers: llvm-commits, danielkiss, hiraditya, kristof.beyls.
Herald added a project: LLVM.

[ARM] halfword store hits llvm_unreachable with big-endian

Provide missing case in getFixupKindContainerSizeBytes().

This stops execution reaching llvm_unreachable("Unknown fixup kind!")


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D83947

Files:
  llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
  llvm/test/CodeGen/ARM/store_half.ll


Index: llvm/test/CodeGen/ARM/store_half.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/ARM/store_half.ll
@@ -0,0 +1,9 @@
+; RUN: llc < %s -mtriple=thumbebv8.2a-arm-none-eabi -mattr=+fullfp16 -filetype=obj -o /dev/null
+; RUN: llc < %s -mtriple=thumbv8.2a-arm-none-eabi -mattr=+fullfp16 -filetype=obj -o /dev/null
+; RUN: llc < %s -mtriple=armebv8.2a-arm-none-eabi -mattr=+fullfp16 -filetype=obj -o /dev/null
+; RUN: llc < %s -mtriple=armv8.2a-arm-none-eabi -mattr=+fullfp16 -filetype=obj -o /dev/null
+
+define void @woah(half* %waythere) {
+  store half 0xHE110, half* %waythere
+  ret void
+}
Index: llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
===================================================================
--- llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
+++ llvm/lib/Target/ARM/MCTargetDesc/ARMAsmBackend.cpp
@@ -1010,6 +1010,7 @@
   case ARM::fixup_t2_condbranch:
   case ARM::fixup_t2_uncondbranch:
   case ARM::fixup_t2_pcrel_10:
+  case ARM::fixup_t2_pcrel_9:
   case ARM::fixup_t2_adr_pcrel_12:
   case ARM::fixup_arm_thumb_bl:
   case ARM::fixup_arm_thumb_blx:


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