powerpc-fix-64-bit-comparision

    $ ./configure --target=powerpc-unknown-linux-gnu && make
    ...
    SCCs aren't in reverse dependent order
    bad blockId n3U

 This happened because condIntCode' in PPC codegen generated
 label name but did not place the label into `cmp_lo` code block.

 The change adds the `cmp_lo` label into the case of negative
 comparison.
 Signed-off-by: 's avatarSergei Trofimovich <slyfox@gentoo.org>
 .
Origin: https://gitlab.haskell.org/ghc/ghc/commit/25dce3fc05e4788240ac6d192919063a9f548f7f
Last-Update: 2019-08-09

Gbp-Pq: Name powerpc-fix-64-bit-comparision.patch

diff --git a/compiler/nativeGen/PPC/CodeGen.hs b/compiler/nativeGen/PPC/CodeGen.hs
index 88b9692920a9697d9a666aeb7a1727b738488a15..cff9273daeea3a3d3c0317d4add19ab338cf61bc 100644 (file)
--- a/compiler/nativeGen/PPC/CodeGen.hs
+++ b/compiler/nativeGen/PPC/CodeGen.hs
@@ -923,6 +923,7 @@ condIntCode' True cond W64 x y
                  , BCC LE cmp_lo Nothing
                  , CMPL II32 x_lo (RIReg y_lo)
                  , BCC ALWAYS end_lbl Nothing
+                , NEWBLOCK cmp_lo
                  , CMPL II32 y_lo (RIReg x_lo)
                  , BCC ALWAYS end_lbl Nothing