llvm-mirror/test/ExecutionEngine/2007-12-10-APIntLoadStore.ll
Duncan Sands 1279851352 Fix PR1836: in the interpreter, read and write apints
using the minimum possible number of bytes.  For little
endian targets run on little endian machines, apints are
stored in memory from LSB to MSB as before.  For big endian
targets on big endian machines they are stored from MSB to
LSB which wasn't always the case before (if the target and
host endianness doesn't match values are stored according
to the host's endianness).  Doing this requires knowing the
endianness of the host, which is determined when configuring -
thanks go to Anton for this.  Only having access to little
endian machines I was unable to properly test the big endian
part, which is also the most complicated...

llvm-svn: 44796
2007-12-10 17:43:13 +00:00

20 lines
613 B
LLVM

; RUN: llvm-as < %s -o - | lli -force-interpreter
; PR1836
define i32 @main() {
entry:
%retval = alloca i32 ; <i32*> [#uses=2]
%tmp = alloca i32 ; <i32*> [#uses=2]
%x = alloca i75, align 16 ; <i75*> [#uses=1]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
store i75 999, i75* %x, align 16
store i32 0, i32* %tmp, align 4
%tmp1 = load i32* %tmp, align 4 ; <i32> [#uses=1]
store i32 %tmp1, i32* %retval, align 4
br label %return
return: ; preds = %entry
%retval2 = load i32* %retval ; <i32> [#uses=1]
ret i32 %retval2
}