mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-30 02:32:08 +00:00
fce288fc91
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81293 91177308-0d34-0410-b5e6-96231b3b80d8
48 lines
1.9 KiB
LLVM
48 lines
1.9 KiB
LLVM
; RUN: llc < %s
|
|
|
|
; Test that a negative constant smaller than 64 bits (e.g., int)
|
|
; is correctly implemented with sign-extension.
|
|
; In particular, the current code generated is:
|
|
;
|
|
; main:
|
|
; .L_main_LL_0:
|
|
; save %o6, -224, %o6
|
|
; setx .G_fmtArg_1, %o1, %o0
|
|
; setuw 1, %o1 ! i = 1
|
|
; setuw 4294967295, %o3 ! THE BUG: 0x00000000ffffffff
|
|
; setsw 0, %i0
|
|
; add %i6, 1999, %o2 ! fval
|
|
; add %o1, %g0, %o1
|
|
; add %o0, 0, %o0
|
|
; mulx %o1, %o3, %o1 ! ERROR: 0xffffffff; should be -1
|
|
; add %o1, 3, %o1 ! ERROR: 0x100000002; should be 0x2
|
|
; mulx %o1, 12, %o3 !
|
|
; add %o2, %o3, %o3 ! produces bad address!
|
|
; call printf
|
|
; nop
|
|
; jmpl %i7+8, %g0
|
|
; restore %g0, 0, %g0
|
|
;
|
|
; llc produces:
|
|
; ioff = 2 fval = 0xffffffff7fffec90 &fval[2] = 0xb7fffeca8
|
|
; instead of:
|
|
; ioff = 2 fval = 0xffffffff7fffec90 &fval[2] = 0xffffffff7fffeca8
|
|
;
|
|
%Results = type { float, float, float }
|
|
@fmtArg = internal global [39 x i8] c"ioff = %u\09fval = 0x%p\09&fval[2] = 0x%p\0A\00" ; <[39 x i8]*> [#uses=1]
|
|
|
|
declare i32 @printf(i8*, ...)
|
|
|
|
define i32 @main() {
|
|
%fval = alloca %Results, i32 4 ; <%Results*> [#uses=2]
|
|
%i = add i32 1, 0 ; <i32> [#uses=1]
|
|
%iscale = mul i32 %i, -1 ; <i32> [#uses=1]
|
|
%ioff = add i32 %iscale, 3 ; <i32> [#uses=2]
|
|
%ioff.upgrd.1 = zext i32 %ioff to i64 ; <i64> [#uses=1]
|
|
%fptr = getelementptr %Results* %fval, i64 %ioff.upgrd.1 ; <%Results*> [#uses=1]
|
|
%castFmt = getelementptr [39 x i8]* @fmtArg, i64 0, i64 0 ; <i8*> [#uses=1]
|
|
call i32 (i8*, ...)* @printf( i8* %castFmt, i32 %ioff, %Results* %fval, %Results* %fptr ) ; <i32>:1 [#uses=0]
|
|
ret i32 0
|
|
}
|
|
|