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| author | Jakob Botsch Nielsen <Jakob.botsch.nielsen@gmail.com> | 2021-07-10 13:38:33 +0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-07-10 13:38:33 +0300 |
| commit | 65b472a0f31f2b878601b41a344754ec3e776d1d (patch) | |
| tree | 4fc86b3c605cf8b04619e684face01079676685d /src/coreclr/jit | |
| parent | bb394065f0136ce2bd3afb4349e1dbf46dc9012c (diff) | |
Handle a missing case in zero-extend peephole (#55129)
Diffstat (limited to 'src/coreclr/jit')
| -rw-r--r-- | src/coreclr/jit/emitxarch.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/coreclr/jit/emitxarch.cpp b/src/coreclr/jit/emitxarch.cpp index a0a5e3283d4..217f5f15aaf 100644 --- a/src/coreclr/jit/emitxarch.cpp +++ b/src/coreclr/jit/emitxarch.cpp @@ -296,6 +296,13 @@ bool emitter::AreUpper32BitsZero(regNumber reg) return false; } +#ifdef TARGET_AMD64 + if (id->idIns() == INS_movsxd) + { + return false; + } +#endif + // movzx always zeroes the upper 32 bits. if (id->idIns() == INS_movzx) { |