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| author | Moritz Angermann <moritz.angermann@gmail.com> | 2021-10-20 03:58:59 +0000 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2021-10-25 23:50:59 -0400 |
| commit | 3d296feb062c04913a889b9f4a5799b9ed200e69 (patch) | |
| tree | 07cb9a8668d363f3db14be3c226c3b9dad8791bb | |
| parent | b3d2ced4c89eb0790f7cdb71363afb06307316e1 (diff) | |
| download | haskell-3d296feb062c04913a889b9f4a5799b9ed200e69.tar.gz | |
Do not sign extend CmmInt's unless negative.
Might fix #20526.
(cherry picked from commit 7f4e0e91530117fd4d477d553a7f03993b86fe74)
| -rw-r--r-- | compiler/GHC/CmmToAsm/AArch64/CodeGen.hs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/compiler/GHC/CmmToAsm/AArch64/CodeGen.hs b/compiler/GHC/CmmToAsm/AArch64/CodeGen.hs index 39100ecb50..974e918683 100644 --- a/compiler/GHC/CmmToAsm/AArch64/CodeGen.hs +++ b/compiler/GHC/CmmToAsm/AArch64/CodeGen.hs @@ -445,6 +445,11 @@ getRegister' config plat expr -- TODO handle CmmInt 0 specially, use wzr or xzr. + CmmInt i W8 | i >= 0 -> do + return (Any (intFormat W8) (\dst -> unitOL $ annExpr expr (MOV (OpReg W8 dst) (OpImm (ImmInteger (narrowU W8 i)))))) + CmmInt i W16 | i >= 0 -> do + return (Any (intFormat W16) (\dst -> unitOL $ annExpr expr (MOV (OpReg W16 dst) (OpImm (ImmInteger (narrowU W16 i)))))) + CmmInt i W8 -> do return (Any (intFormat W8) (\dst -> unitOL $ annExpr expr (MOV (OpReg W8 dst) (OpImm (ImmInteger (narrowS W8 i)))))) CmmInt i W16 -> do |