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8cc3474f72
On PPC64, this can be done with a simple TableGen pattern. To enable this, I've added the (otherwise missing) readcyclecounter SDNode definition to TargetSelectionDAG.td. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161302 91177308-0d34-0410-b5e6-96231b3b80d8
16 lines
361 B
LLVM
16 lines
361 B
LLVM
target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v128:128:128-n32:64"
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target triple = "powerpc64-unknown-linux-gnu"
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; RUN: llc < %s | FileCheck %s
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define i64 @test1() nounwind {
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entry:
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%r = call i64 @llvm.readcyclecounter()
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ret i64 %r
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}
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; CHECK: @test1
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; CHECK: mftb
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declare i64 @llvm.readcyclecounter()
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