1 ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
2 ; Check memory cost model action for a load of an unusually sized integer
3 ; follow by and a trunc to a register sized integer gives a cost of 1 rather
4 ; than the expanded cost. Currently the x86 code size cost model does not use
5 ; the expanded cost and only assigns a cost of 1 to each load.
7 ; RUN: opt -passes="print<cost-model>" -cost-kind=code-size 2>&1 -disable-output -mtriple=x86_64--linux-gnu < %s | FileCheck %s --check-prefix=CHECK
9 ; Check that cost is 1 for unusual load to register sized load.
10 define i32 @loadUnusualIntegerWithTrunc(ptr %ptr) {
11 ; CHECK-LABEL: 'loadUnusualIntegerWithTrunc'
12 ; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %out = load i128, ptr %ptr, align 16
13 ; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %trunc = trunc i128 %out to i32
14 ; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 %trunc
16 %out = load i128, ptr %ptr
17 %trunc = trunc i128 %out to i32
21 define i128 @loadUnusualInteger(ptr %ptr) {
22 ; CHECK-LABEL: 'loadUnusualInteger'
23 ; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %out = load i128, ptr %ptr, align 16
24 ; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i128 %out
26 %out = load i128, ptr %ptr