[llvm-commits] [PATCH] SPARC backend - Passing arguments

[Venkatraman Govindaraju]

Hello,

  This patch makes the SPARC backend to generate correct assembly for
the code below. Before the changes, the seventh parameter (double
%arg1) passed through stack using "std  %f0, [%sp+92]" (store-double)
instruction. Since %sp+92 is not aligned to double word, the
instruction causes a "Bus Error".

 Please let me know whether it is okay to commit.

Thanks,
Venkatraman


; ModuleID = 'arg7.c'
target datalayout =
"E-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-f128:64:64-n32"
target triple = "sparc-sun-solaris2.11"

@d = global double 0x40934CEFDB09A672

define i32 @test1(i32 %a, i32 %b, i32 %c, i32 %d, i32 %e, i32 %f,
double %arg1) nounwind readnone noinline {
entry:
  ret i32 0
}

define i32 @main() nounwind readonly {
entry:
  %0 = load double* @d, align 8
  %1 = tail call i32 @test1(i32 1, i32 2, i32 3, i32 4, i32 5, i32 10,
double %0) nounwind noinline
  ret i32 %1
}
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