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-rw-r--r--compiler/nativeGen/RegAlloc/Linear/Main.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/nativeGen/RegAlloc/Linear/Main.hs b/compiler/nativeGen/RegAlloc/Linear/Main.hs
index 2d6508096f..fc0bde44a0 100644
--- a/compiler/nativeGen/RegAlloc/Linear/Main.hs
+++ b/compiler/nativeGen/RegAlloc/Linear/Main.hs
@@ -186,6 +186,7 @@ linearRegAlloc dflags first_id block_live sccs
ArchPPC -> linearRegAlloc' platform (frInitFreeRegs :: PPC.FreeRegs) first_id block_live sccs
ArchARM _ _ -> panic "linearRegAlloc ArchARM"
ArchPPC_64 -> panic "linearRegAlloc ArchPPC_64"
+ ArchUnknown -> panic "linearRegAlloc ArchUnknown"
linearRegAlloc'
:: (FR freeRegs, PlatformOutputable instr, Instruction instr)