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https://github.com/c64scene-ar/llvm-6502.git
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29 lines
658 B
LLVM
29 lines
658 B
LLVM
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; RUN: llc -O3 < %s | FileCheck %s
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target datalayout = "e-m:e-i64:64-i128:128-n32:64-S128"
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target triple = "arm64--linux-gnu"
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; Function Attrs: nounwind readnone
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define i32 @test1(i8 %a) {
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; CHECK-LABLE: @test1
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; CHECK: ubfx {{w[0-9]+}}, w0, #3, #5
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entry:
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%conv = zext i8 %a to i32
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%shr1 = lshr i32 %conv, 3
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ret i32 %shr1
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}
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; Function Attrs: nounwind readnone
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define i32 @test2(i8 %a) {
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; CHECK-LABLE: @test2
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; CHECK: and {{w[0-9]+}}, w0, #0xff
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; CHECK: ubfx {{w[0-9]+}}, w0, #3, #5
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entry:
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%conv = zext i8 %a to i32
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%cmp = icmp ugt i8 %a, 47
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%shr5 = lshr i32 %conv, 3
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%retval.0 = select i1 %cmp, i32 %shr5, i32 %conv
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ret i32 %retval.0
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}
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