mirror of
https://github.com/c64scene-ar/llvm-6502.git
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d49ffe8284
Generalization of Nate Begeman's patch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130502 91177308-0d34-0410-b5e6-96231b3b80d8
24 lines
460 B
LLVM
24 lines
460 B
LLVM
; RUN: llc < %s -march=thumb -mattr=+thumb2 | FileCheck %s
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; CHECK: f1:
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; CHECK: ror.w r0, r0, #22
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define i32 @f1(i32 %a) {
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%l8 = shl i32 %a, 10
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%r8 = lshr i32 %a, 22
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%tmp = or i32 %l8, %r8
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ret i32 %tmp
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}
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; CHECK: f2:
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; CHECK-NOT: and
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; CHECK: ror
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define i32 @f2(i32 %v, i32 %nbits) {
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entry:
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%and = and i32 %nbits, 31
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%shr = lshr i32 %v, %and
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%sub = sub i32 32, %and
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%shl = shl i32 %v, %sub
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%or = or i32 %shl, %shr
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ret i32 %or
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} |