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17 lines
567 B
LLVM
17 lines
567 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 | grep -v declare | not grep 'llvm.ct'
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declare i32 @llvm.ctpop.i31(i31 %val)
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declare i32 @llvm.cttz.i32(i32 %val)
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declare i32 @llvm.ctlz.i33(i33 %val)
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define i32 @test(i32 %A) {
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%c1 = call i32 @llvm.ctpop.i31(i31 12415124)
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%c2 = call i32 @llvm.cttz.i32(i32 87359874)
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%c3 = call i32 @llvm.ctlz.i33(i33 87359874)
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%r1 = add i32 %c1, %c2
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%r2 = add i32 %r1, %c3
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ret i32 %r2
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}
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