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-rw-r--r--llvm/test/CodeGen/WebAssembly/immediates.ll5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/WebAssembly/immediates.ll b/llvm/test/CodeGen/WebAssembly/immediates.ll
index 0c96365102d..ee8833bc4b4 100644
--- a/llvm/test/CodeGen/WebAssembly/immediates.ll
+++ b/llvm/test/CodeGen/WebAssembly/immediates.ll
@@ -1,5 +1,10 @@
; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -wasm-keep-registers | FileCheck %s
+; Usually MIPS hosts uses a legacy (non IEEE 754-2008) encoding for NaNs.
+; Tests like `nan_f32` failed in attempt to compare hard-coded IEEE 754-2008
+; NaN value and a legacy NaN value provided by a system.
+; XFAIL: mips-, mipsel-, mips64-, mips64el-
+
; Test that basic immediates assemble as expected.
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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