1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
|
; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
; Check memory cost model action for a load of an unusually sized integer
; follow by and a trunc to a register sized integer gives a cost of 1 rather
; than the expanded cost if it is not.
; RUN: opt -passes="print<cost-model>" -cost-kind=code-size 2>&1 -disable-output -mtriple=riscv64 < %s | FileCheck %s --check-prefix=CHECK
; Check that cost is 1 for unusual load to register sized load.
define i32 @loadUnusualIntegerWithTrunc(ptr %ptr) {
; CHECK-LABEL: 'loadUnusualIntegerWithTrunc'
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: %out = load i128, ptr %ptr, align 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 0 for instruction: %trunc = trunc i128 %out to i32
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i32 %trunc
;
%out = load i128, ptr %ptr
%trunc = trunc i128 %out to i32
ret i32 %trunc
}
define i128 @loadUnusualInteger(ptr %ptr) {
; CHECK-LABEL: 'loadUnusualInteger'
; CHECK-NEXT: Cost Model: Found an estimated cost of 2 for instruction: %out = load i128, ptr %ptr, align 16
; CHECK-NEXT: Cost Model: Found an estimated cost of 1 for instruction: ret i128 %out
;
%out = load i128, ptr %ptr
ret i128 %out
}
|
