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23 lines
577 B
LLVM
23 lines
577 B
LLVM
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; RUN: llc < %s -march=x86-64 -mcpu=generic | FileCheck %s --check-prefix=CHECK --check-prefix=X86-64
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; RUN: llc < %s -march=x86 -mcpu=generic | FileCheck %s --check-prefix=CHECK --check-prefix=X86
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; Verify that we correctly lower the "Read Performance-Monitoring Counters"
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; x86 builtin.
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define i64 @test_builtin_read_pmc(i32 %ID) {
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%1 = tail call i64 @llvm.x86.rdpmc(i32 %ID)
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ret i64 %1
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}
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; CHECK-LABEL: test_builtin_read_pmc
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; CHECK: rdpmc
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; X86-NOT: shlq
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; X86-NOT: or
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; X86-64: shlq
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; X86-64: or
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; CHECK-NOT: mov
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; CHECK: ret
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declare i64 @llvm.x86.rdpmc(i32 %ID)
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