Evan Cheng | 2824a65 | 2009-03-23 18:24:37 +0000 | [diff] [blame^] | 1 | ; RUN: llvm-as < %s | llc -mtriple=i386-unknown-linux-gnu |
| 2 | ; XFAIL: * |
| 3 | ; Expected to run out of registers during allocation. |
| 4 | ; PR3391 |
| 5 | |
| 6 | @pci_indirect = external global { } ; <{ }*> [#uses=1] |
| 7 | @pcibios_last_bus = external global i32 ; <i32*> [#uses=2] |
| 8 | |
| 9 | define void @pci_pcbios_init() nounwind section ".init.text" { |
| 10 | entry: |
| 11 | br label %bb1.i |
| 12 | |
| 13 | bb1.i: ; preds = %bb6.i.i, %bb1.i, %entry |
| 14 | %0 = load i32* null, align 8 ; <i32> [#uses=1] |
| 15 | %1 = icmp ugt i32 %0, 1048575 ; <i1> [#uses=1] |
| 16 | br i1 %1, label %bb2.i, label %bb1.i |
| 17 | |
| 18 | bb2.i: ; preds = %bb1.i |
| 19 | %asmtmp.i.i = tail call { i32, i32, i32, i32 } asm "lcall *(%edi); cld\0A\09jc 1f\0A\09xor %ah, %ah\0A1:", "={dx},={ax},={bx},={cx},1,{di},~{dirflag},~{fpsr},~{flags},~{memory}"(i32 45313, { }* @pci_indirect) nounwind ; <{ i32, i32, i32, i32 }> [#uses=2] |
| 20 | %asmresult2.i.i = extractvalue { i32, i32, i32, i32 } %asmtmp.i.i, 1 |
| 21 | ; <i32> [#uses=1] |
| 22 | %2 = lshr i32 %asmresult2.i.i, 8 ; <i32> [#uses=1] |
| 23 | %3 = trunc i32 %2 to i8 ; <i8> [#uses=1] |
| 24 | %4 = load i32* @pcibios_last_bus, align 4 ; <i32> [#uses=1] |
| 25 | %5 = icmp slt i32 %4, 0 ; <i1> [#uses=1] |
| 26 | br i1 %5, label %bb5.i.i, label %bb6.i.i |
| 27 | |
| 28 | bb5.i.i: ; preds = %bb2.i |
| 29 | %asmresult4.i.i = extractvalue { i32, i32, i32, i32 } %asmtmp.i.i, 3 |
| 30 | ; <i32> [#uses=1] |
| 31 | %6 = and i32 %asmresult4.i.i, 255 ; <i32> [#uses=1] |
| 32 | store i32 %6, i32* @pcibios_last_bus, align 4 |
| 33 | br label %bb6.i.i |
| 34 | |
| 35 | bb6.i.i: ; preds = %bb5.i.i, %bb2.i |
| 36 | %7 = icmp eq i8 %3, 0 ; <i1> [#uses=1] |
| 37 | %or.cond.i.i = and i1 %7, false ; <i1> [#uses=1] |
| 38 | br i1 %or.cond.i.i, label %bb1.i, label %bb8.i.i |
| 39 | |
| 40 | bb8.i.i: ; preds = %bb6.i.i |
| 41 | unreachable |
| 42 | } |