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https://github.com/c64scene-ar/llvm-6502.git
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055135d1c1
threaded over git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23396 91177308-0d34-0410-b5e6-96231b3b80d8
64 lines
1.1 KiB
LLVM
64 lines
1.1 KiB
LLVM
; RUN: llvm-as < %s | opt -simplifycfg -adce | llvm-dis | not grep 'call void %f1' &&
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; RUN: llvm-as < %s | opt -simplifycfg -adce -disable-output
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declare void %f1()
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declare void %f2()
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declare void %f3()
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declare void %f4()
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implementation
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int %test1(int %X, bool %D) {
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E:
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%C = seteq int %X, 0
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br bool %C, label %T, label %F
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T:
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br bool %C, label %B, label %A
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A:
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call void %f1()
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br bool %D, label %T, label %F
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B:
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call void %f2()
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ret int 345
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F:
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call void %f3()
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ret int 123
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}
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int %test2(int %X, bool %D) {
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E:
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%C = seteq int %X, 0
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br bool %C, label %T, label %F
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T:
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%P = phi bool [true, %E], [%C, %A]
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br bool %P, label %B, label %A
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A:
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call void %f1()
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br bool %D, label %T, label %F
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B:
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call void %f2()
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ret int 345
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F:
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call void %f3()
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ret int 123
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}
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int %test3(int %X, bool %D, int* %AP, int* %BP) {
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E:
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%C = seteq int %X, 0
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br bool %C, label %T, label %F
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T:
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call void %f3() ;; Inst in block.
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%XX = load int* %AP
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store int %XX, int* %BP
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br bool %C, label %B, label %A
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A:
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call void %f1()
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br bool %D, label %T, label %F
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B:
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call void %f2()
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ret int 345
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F:
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call void %f3()
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ret int 123
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}
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