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https://github.com/c64scene-ar/llvm-6502.git
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41 lines
1.8 KiB
LLVM
41 lines
1.8 KiB
LLVM
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; RUN: llvm-as < %s | llc -mtriple=i386-unknown-linux-gnu
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; PR3391
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@pci_indirect = external global { } ; <{ }*> [#uses=1]
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@pcibios_last_bus = external global i32 ; <i32*> [#uses=2]
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define void @pci_pcbios_init() nounwind section ".init.text" {
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entry:
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br label %bb1.i
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bb1.i: ; preds = %bb6.i.i, %bb1.i, %entry
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%0 = load i32* null, align 8 ; <i32> [#uses=1]
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%1 = icmp ugt i32 %0, 1048575 ; <i1> [#uses=1]
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br i1 %1, label %bb2.i, label %bb1.i
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bb2.i: ; preds = %bb1.i
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%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]
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%asmresult2.i.i = extractvalue { i32, i32, i32, i32 } %asmtmp.i.i, 1
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; <i32> [#uses=1]
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%2 = lshr i32 %asmresult2.i.i, 8 ; <i32> [#uses=1]
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%3 = trunc i32 %2 to i8 ; <i8> [#uses=1]
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%4 = load i32* @pcibios_last_bus, align 4 ; <i32> [#uses=1]
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%5 = icmp slt i32 %4, 0 ; <i1> [#uses=1]
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br i1 %5, label %bb5.i.i, label %bb6.i.i
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bb5.i.i: ; preds = %bb2.i
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%asmresult4.i.i = extractvalue { i32, i32, i32, i32 } %asmtmp.i.i, 3
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; <i32> [#uses=1]
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%6 = and i32 %asmresult4.i.i, 255 ; <i32> [#uses=1]
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store i32 %6, i32* @pcibios_last_bus, align 4
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br label %bb6.i.i
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bb6.i.i: ; preds = %bb5.i.i, %bb2.i
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%7 = icmp eq i8 %3, 0 ; <i1> [#uses=1]
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%or.cond.i.i = and i1 %7, false ; <i1> [#uses=1]
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br i1 %or.cond.i.i, label %bb1.i, label %bb8.i.i
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bb8.i.i: ; preds = %bb6.i.i
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unreachable
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}
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