[LLVMbugs] [Bug 15605] bad asm emitted for powerpc-darwin8

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=15605

David Fang <fang at csl.cornell.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|FIXED                       |---

--- Comment #6 from David Fang <fang at csl.cornell.edu> ---
Just for the record, here's the resulting change in asm produced in the patched
version.  (And it assembles fine.)

--- APFloat.s.orig      2013-03-26 14:44:57.000000000 -0700
+++ APFloat.s   2013-03-27 10:44:04.000000000 -0700
@@ -20872,7 +20872,7 @@
 ; BB#0:                                 ; %entry
        stw r3, -8(r1)
        addi r2, r1, -8
-       lwbrx r2, r0, r2
+       lwbrx r2, 0, r2
        stw r3, -12(r1)                 ; 4-byte Folded Spill
        mr r3, r2
        blr 
@@ -21300,7 +21300,7 @@
 LBB236_1:                               ; %entry
                                         ; =>This Inner Loop Header: Depth=1
        lwz r2, 80(r31)                 ; 4-byte Folded Reload
-       lwarx r3, r0, r2
+       lwarx r3, 0, r2
        lwz r4, 88(r31)                 ; 4-byte Folded Reload
        and r5, r3, r4
        lwz r6, 72(r31)                 ; 4-byte Folded Reload
@@ -21316,13 +21316,13 @@
        lwz r5, 76(r31)                 ; 4-byte Folded Reload
        or r4, r4, r5
        lwz r6, 80(r31)                 ; 4-byte Folded Reload
-       stwcx. r4, r0, r6
+       stwcx. r4, 0, r6
        bne cr0, LBB236_1
        b LBB236_4
 LBB236_3:                               ; %entry
        lwz r2, 68(r31)                 ; 4-byte Folded Reload
        lwz r3, 80(r31)                 ; 4-byte Folded Reload
-       stwcx. r2, r0, r3
+       stwcx. r2, 0, r3
 LBB236_4:                               ; %entry
        lwz r2, 64(r31)                 ; 4-byte Folded Reload
        lwz r3, 84(r31)                 ; 4-byte Folded Reload

I'll pick up your commit on trunk with my next merge.  Thanks again!
(I'll close the bug then.)

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