[LLVMdev] ASM appears to be incorrect from llc

[Matthew Huck]

Hi,
  I'm trying to compile an intermediate representation file to ASM (intel
style), and I believe that the resultant ASM is invalid. The IR is:

; ModuleID = 'test.u'

%vec2 = type { float, float }
@t = global %vec2 zeroinitializer
@x = global i32 0

define i32 @main__i__v() nounwind {
locals:
  %0 = load float* getelementptr inbounds (%vec2* @t, i32 0, i32 0)
  %1 = fptosi float %0 to i64
  %2 = trunc i64 %1 to i32
  store i32 %2, i32* @x
  ret i32 0
}



Now, I know no memory is allocated for t (ignore that), we'll just expect
the final program to crash

Running this through
llvm-as.exe test.trunk.ll -f -o test.bc
and then
llc -x86-asm-syntax=intel -o test.trunk.S test.bc

yields:

.def _main__i__v;
.scl 2;
.type 32;
.endef
.text
.globl _main__i__v
.align 16, 0x90
_main__i__v:                            # @main__i__v
# BB#0:                                 # %locals
sub ESP, 20
movss XMM0, DWORD PTR [_t]
movss DWORD PTR [ESP + 8], XMM0
fld DWORD PTR [ESP + 8]
fisttp QWORD PTR [ESP]
mov EAX, DWORD PTR [ESP]
mov _x, EAX
xor EAX, EAX
add ESP, 20
ret

.data
.globl _t                      # @t
.align 8
_t:
.zero 8

.globl _x                      # @x
.align 4
_x:
.long 0                       # 0x0




Now, the bit I think is wrong is
mov _x,EAX

I think it should be
mov [_x], eax

Thoughts?

Cheers

Matthew
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