| Dan Gohman | fce288f | 2009-09-09 00:09:15 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -march=ppc32 |
| Dan Gohman | 33a9cb4 | 2008-11-05 22:56:47 +0000 | [diff] [blame] | 2 | |
| 3 | ; The DAGCombiner leaves behind a dead node in this testcase. Currently |
| 4 | ; ISel is ignoring dead nodes, though it would be preferable for |
| 5 | ; DAGCombiner to be able to eliminate the dead node. |
| 6 | |
| 7 | define void @GrayATo32ARGBTabB(i8* %baseAddr, i16** %cmp, i32 %rowBytes) nounwind { |
| 8 | entry: |
| 9 | br label %bb1 |
| 10 | |
| 11 | bb1: ; preds = %bb1, %entry |
| 12 | %0 = load i16* null, align 2 ; <i16> [#uses=1] |
| 13 | %1 = ashr i16 %0, 4 ; <i16> [#uses=1] |
| 14 | %2 = sext i16 %1 to i32 ; <i32> [#uses=1] |
| 15 | %3 = getelementptr i8* null, i32 %2 ; <i8*> [#uses=1] |
| 16 | %4 = load i8* %3, align 1 ; <i8> [#uses=1] |
| 17 | %5 = zext i8 %4 to i32 ; <i32> [#uses=1] |
| 18 | %6 = shl i32 %5, 24 ; <i32> [#uses=1] |
| 19 | %7 = or i32 0, %6 ; <i32> [#uses=1] |
| 20 | store i32 %7, i32* null, align 4 |
| 21 | br label %bb1 |
| 22 | } |