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https://github.com/c64scene-ar/llvm-6502.git
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6994040a95
This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40807 91177308-0d34-0410-b5e6-96231b3b80d8
20 lines
630 B
LLVM
20 lines
630 B
LLVM
; Tests to make sure bit counts of constants are folded
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {ret i32 19}
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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
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; RUN: grep -v declare | not grep llvm.ct
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declare i31 @llvm.ctpop.i31(i31 %val)
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declare i32 @llvm.cttz.i32(i32 %val)
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declare i33 @llvm.ctlz.i33(i33 %val)
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define i32 @test(i32 %A) {
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%c1 = call i31 @llvm.ctpop.i31(i31 12415124)
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%c2 = call i32 @llvm.cttz.i32(i32 87359874)
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%c3 = call i33 @llvm.ctlz.i33(i33 87359874)
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%t1 = zext i31 %c1 to i32
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%t3 = trunc i33 %c3 to i32
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%r1 = add i32 %t1, %c2
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%r2 = add i32 %r1, %t3
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ret i32 %r2
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}
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