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authorPeter Trommler <ptrommler@acm.org>2021-05-16 15:01:52 +0200
committerPeter Trommler <ptrommler@acm.org>2021-06-21 18:31:50 +0000
commitaa3bbb77632b7371ef2b138f71e64ad16aa526b1 (patch)
tree0e5daa6579720be98eb9e0fd39fb584d2954df25
parent7927a1cbb5a52a054cb510e8e3c4e11c198d3917 (diff)
downloadhaskell-wip/T19852-backport-9.2.tar.gz
PPC NCG: Fix unsigned compare with 16-bit constantswip/T19852-backport-9.2
Fixes #19852 and #19609
-rw-r--r--compiler/GHC/CmmToAsm/PPC/CodeGen.hs3
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/GHC/CmmToAsm/PPC/CodeGen.hs b/compiler/GHC/CmmToAsm/PPC/CodeGen.hs
index 0a78722c85..baa874fc30 100644
--- a/compiler/GHC/CmmToAsm/PPC/CodeGen.hs
+++ b/compiler/GHC/CmmToAsm/PPC/CodeGen.hs
@@ -982,7 +982,8 @@ condIntCode' _ cond width x (CmmLit (CmmInt y rep))
| Just src2 <- makeImmediate rep (not $ condUnsigned cond) y
= do
let op_len = max W32 width
- let extend = extendSExpr width op_len
+ let extend = if condUnsigned cond then extendUExpr width op_len
+ else extendSExpr width op_len
(src1, code) <- getSomeReg (extend x)
let format = intFormat op_len
code' = code `snocOL`