| ; 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" ; <ptr> [#uses=1] |
| |
| declare i32 @printf(ptr, ...) |
| |
| define i32 @main() { |
| %fval = alloca %Results, i32 4 ; <ptr> [#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, ptr %fval, i64 %ioff.upgrd.1 ; <ptr> [#uses=1] |
| %castFmt = getelementptr [39 x i8], ptr @fmtArg, i64 0, i64 0 ; <ptr> [#uses=1] |
| call i32 (ptr, ...) @printf( ptr %castFmt, i32 %ioff, ptr %fval, ptr %fptr ) ; <i32>:1 [#uses=0] |
| ret i32 0 |
| } |
| |