mirror of
https://github.com/c64scene-ar/llvm-6502.git
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bf5a2c6a39
bitwidth op back to the original size. If we reduce ANDs then this can cause an endless loop. This patch changes the ZEXT to ANY_EXTEND if the demanded bits are equal or smaller than the size of the reduced operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170505 91177308-0d34-0410-b5e6-96231b3b80d8
22 lines
557 B
LLVM
22 lines
557 B
LLVM
; RUN: llc < %s
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define void @main() {
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if.end:
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br label %block.i.i
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block.i.i:
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%tmpbb = load i8* undef
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%tmp54 = zext i8 %tmpbb to i64
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%tmp59 = and i64 %tmp54, 8
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%tmp60 = add i64 %tmp59, 3691045929300498764
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%tmp62 = sub i64 %tmp60, 3456506383779105993
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%tmp63 = xor i64 1050774804270620004, %tmp62
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%tmp65 = xor i64 %tmp62, 234539545521392771
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%tmp67 = or i64 %tmp65, %tmp63
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%tmp71 = xor i64 %tmp67, 6781485823212740913
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%tmp72 = trunc i64 %tmp71 to i32
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%tmp74 = lshr i32 2, %tmp72
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store i32 %tmp74, i32* undef
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br label %block.i.i
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}
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