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Fix memory access lowering on SPU, adding

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support for the case where alignment<value size.

These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory 
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118889 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kalle Raiskila
2010-11-12 10:14:03 +00:00
parent d0c82a683e
commit 7ea1ab5f41
7 changed files with 277 additions and 115 deletions
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2
test/CodeGen/CellSPU/arg_ret.ll
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@@ -26,7 +26,7 @@ define ccc i32 @test_regs_and_stack( %paramstruct %prm, i32 %stackprm )
define ccc %paramstruct @test_return( i32 %param, %paramstruct %prm )
{
;CHECK: lqd $75, 80($sp)
;CHECK: lqd {{\$[0-9]+}}, 80($sp)
;CHECK-NOT: ori {{\$[0-9]+, \$[0-9]+, 0}}
;CHECK: lr $3, $4
ret %paramstruct %prm