27 lines
839 B
LLVM
27 lines
839 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=i686-unknown-unknown -mcpu=generic | FileCheck %s --check-prefix=X86
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; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mcpu=generic | FileCheck %s --check-prefix=X64
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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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; X86-LABEL: test_builtin_read_pmc:
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; X86: # %bb.0:
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; X86-NEXT: movl {{[0-9]+}}(%esp), %ecx
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; X86-NEXT: rdpmc
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; X86-NEXT: retl
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;
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; X64-LABEL: test_builtin_read_pmc:
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; X64: # %bb.0:
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; X64-NEXT: movl %edi, %ecx
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; X64-NEXT: rdpmc
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; X64-NEXT: shlq $32, %rdx
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; X64-NEXT: orq %rdx, %rax
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; X64-NEXT: retq
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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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declare i64 @llvm.x86.rdpmc(i32 %ID)
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