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X86: peephole optimization to remove cmp instruction
[oota-llvm.git]
/
test
/
CodeGen
/
X86
/
rdtsc.ll
1
; RUN: llc < %s -march=x86 | grep rdtsc
2
; RUN: llc < %s -march=x86-64 | grep rdtsc
3
declare i64 @llvm.readcyclecounter()
4
5
define i64 @foo() {
6
%tmp.1 = call i64 @llvm.readcyclecounter( ) ; <i64> [#uses=1]
7
ret i64 %tmp.1
8
}