[WebAssembly] Add sign extend instructions from atomics proposal
Select them from ISD::SIGN_EXTEND_INREG
Differential Revision: https://reviews.llvm.org/D37603
remove spurious change
llvm-svn: 313101
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyInstrConv.td b/llvm/lib/Target/WebAssembly/WebAssemblyInstrConv.td
index 29483ba..d2decb2 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyInstrConv.td
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyInstrConv.td
@@ -26,6 +26,24 @@
[(set I64:$dst, (zext I32:$src))],
"i64.extend_u/i32\t$dst, $src", 0xad>;
+let Predicates = [HasAtomics] in {
+def I32_EXTEND8_S_I32 : I<(outs I32:$dst), (ins I32:$src),
+ [(set I32:$dst, (sext_inreg I32:$src, i8))],
+ "i32.extend8_s\t$dst, $src", 0xc0>;
+def I32_EXTEND16_S_I32 : I<(outs I32:$dst), (ins I32:$src),
+ [(set I32:$dst, (sext_inreg I32:$src, i16))],
+ "i32.extend16_s\t$dst, $src", 0xc1>;
+def I64_EXTEND8_S_I64 : I<(outs I64:$dst), (ins I64:$src),
+ [(set I64:$dst, (sext_inreg I64:$src, i8))],
+ "i64.extend8_s\t$dst, $src", 0xc2>;
+def I64_EXTEND16_S_I64 : I<(outs I64:$dst), (ins I64:$src),
+ [(set I64:$dst, (sext_inreg I64:$src, i16))],
+ "i64.extend16_s\t$dst, $src", 0xc3>;
+def I64_EXTEND32_S_I64 : I<(outs I64:$dst), (ins I64:$src),
+ [(set I64:$dst, (sext_inreg I64:$src, i32))],
+ "i64.extend32_s\t$dst, $src", 0xc4>;
+} // Predicates = [HasAtomics]
+
} // defs = [ARGUMENTS]
// Expand a "don't care" extend into zero-extend (chosen over sign-extend