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41 lines
1.2 KiB
LLVM
41 lines
1.2 KiB
LLVM
; RUN: llc -march=x86 -mattr=+sse < %s | FileCheck %s
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%vec = type <6 x float>
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; CHECK: divss
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; CHECK: divss
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; CHECK: divps
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define %vec @vecdiv( %vec %p1, %vec %p2)
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{
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%result = fdiv %vec %p1, %p2
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ret %vec %result
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}
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@a = constant %vec < float 2.0, float 4.0, float 8.0, float 16.0, float 32.0, float 64.0 >
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@b = constant %vec < float 2.0, float 2.0, float 2.0, float 2.0, float 2.0, float 2.0 >
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; Expected result: < 1.0, 2.0, 4.0, ..., 2.0^(n-1) >
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; main() returns 0 if the result is expected and 1 otherwise
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; to execute, use llvm-as < %s | lli
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define i32 @main() nounwind {
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entry:
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%avec = load %vec* @a
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%bvec = load %vec* @b
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%res = call %vec @vecdiv(%vec %avec, %vec %bvec)
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br label %loop
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loop:
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%idx = phi i32 [0, %entry], [%nextInd, %looptail]
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%expected = phi float [1.0, %entry], [%nextExpected, %looptail]
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%elem = extractelement %vec %res, i32 %idx
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%expcmp = fcmp oeq float %elem, %expected
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br i1 %expcmp, label %looptail, label %return
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looptail:
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%nextExpected = fmul float %expected, 2.0
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%nextInd = add i32 %idx, 1
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%cmp = icmp slt i32 %nextInd, 6
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br i1 %cmp, label %loop, label %return
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return:
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%retval = phi i32 [0, %looptail], [1, %loop]
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ret i32 %retval
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}
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