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https://github.com/c64scene-ar/llvm-6502.git
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4adcade9b7
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@88942 91177308-0d34-0410-b5e6-96231b3b80d8
29 lines
640 B
LLVM
29 lines
640 B
LLVM
; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s
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define i8 @test1(i32 %A.u) zeroext {
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; CHECK: test1
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; CHECK: uxtb r0, r0
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%B.u = trunc i32 %A.u to i8
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ret i8 %B.u
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}
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define i32 @test2(i32 %A.u, i32 %B.u) zeroext {
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; CHECK: test2
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; CHECK: uxtab r0, r0, r1
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%C.u = trunc i32 %B.u to i8
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%D.u = zext i8 %C.u to i32
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%E.u = add i32 %A.u, %D.u
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ret i32 %E.u
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}
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define i32 @test3(i32 %A.u) zeroext {
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; CHECK: test3
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; CHECK: uxth.w r0, r0, ror #8
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%B.u = lshr i32 %A.u, 8
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%C.u = shl i32 %A.u, 24
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%D.u = or i32 %B.u, %C.u
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%E.u = trunc i32 %D.u to i16
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%F.u = zext i16 %E.u to i32
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ret i32 %F.u
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}
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