llvm-project/llvm/test/Analysis/CostModel/SystemZ/load-ptr-cmp-fold.ll

12 lines
510 B
LLVM

; RUN: opt < %s -passes='print<cost-model>' 2>&1 -disable-output -mtriple=systemz-unknown -mcpu=z13 | FileCheck %s
; Test that the cost heuristic for a folded load works also for a pointer operand.
define void @fun0(i64* %lhs, i64** %rhs_ptr) {
%rhs = load i64*, i64** %rhs_ptr
%c = icmp eq i64* %lhs, %rhs
ret void
; CHECK: function 'fun0'
; CHECK: Cost Model: Found an estimated cost of 0 for instruction: %rhs = load
; CHECK: Cost Model: Found an estimated cost of 1 for instruction: %c = icmp
}