forked from OSchip/llvm-project
102 lines
2.7 KiB
LLVM
102 lines
2.7 KiB
LLVM
; RUN: opt -inline < %s -S -o - -inline-threshold=10 | FileCheck %s
|
|
|
|
target datalayout = "p:32:32-p1:64:64-p2:16:16-n16:32:64"
|
|
|
|
define i32 @outer1() {
|
|
; CHECK-LABEL: @outer1(
|
|
; CHECK-NOT: call
|
|
; CHECK: ret i32
|
|
|
|
%ptr = alloca i32
|
|
%ptr1 = getelementptr inbounds i32* %ptr, i32 0
|
|
%ptr2 = getelementptr inbounds i32* %ptr, i32 42
|
|
%result = call i32 @inner1(i32* %ptr1, i32* %ptr2)
|
|
ret i32 %result
|
|
}
|
|
|
|
define i32 @inner1(i32* %begin, i32* %end) {
|
|
%begin.i = ptrtoint i32* %begin to i32
|
|
%end.i = ptrtoint i32* %end to i32
|
|
%distance = sub i32 %end.i, %begin.i
|
|
%icmp = icmp sle i32 %distance, 42
|
|
br i1 %icmp, label %then, label %else
|
|
|
|
then:
|
|
ret i32 3
|
|
|
|
else:
|
|
%t = load i32* %begin
|
|
ret i32 %t
|
|
}
|
|
|
|
define i32 @outer2(i32* %ptr) {
|
|
; Test that an inbounds GEP disables this -- it isn't safe in general as
|
|
; wrapping changes the behavior of lessthan and greaterthan comparisions.
|
|
; CHECK-LABEL: @outer2(
|
|
; CHECK: call i32 @inner2
|
|
; CHECK: ret i32
|
|
|
|
%ptr1 = getelementptr i32* %ptr, i32 0
|
|
%ptr2 = getelementptr i32* %ptr, i32 42
|
|
%result = call i32 @inner2(i32* %ptr1, i32* %ptr2)
|
|
ret i32 %result
|
|
}
|
|
|
|
define i32 @inner2(i32* %begin, i32* %end) {
|
|
%begin.i = ptrtoint i32* %begin to i32
|
|
%end.i = ptrtoint i32* %end to i32
|
|
%distance = sub i32 %end.i, %begin.i
|
|
%icmp = icmp sle i32 %distance, 42
|
|
br i1 %icmp, label %then, label %else
|
|
|
|
then:
|
|
ret i32 3
|
|
|
|
else:
|
|
%t = load i32* %begin
|
|
ret i32 %t
|
|
}
|
|
|
|
; The inttoptrs are free since it is a smaller integer to a larger
|
|
; pointer size
|
|
define i32 @inttoptr_free_cost(i32 %a, i32 %b, i32 %c) {
|
|
%p1 = inttoptr i32 %a to i32 addrspace(1)*
|
|
%p2 = inttoptr i32 %b to i32 addrspace(1)*
|
|
%p3 = inttoptr i32 %c to i32 addrspace(1)*
|
|
%t1 = load i32 addrspace(1)* %p1
|
|
%t2 = load i32 addrspace(1)* %p2
|
|
%t3 = load i32 addrspace(1)* %p3
|
|
%s = add i32 %t1, %t2
|
|
%s1 = add i32 %s, %t3
|
|
ret i32 %s1
|
|
}
|
|
|
|
define i32 @inttoptr_free_cost_user(i32 %begin, i32 %end) {
|
|
; CHECK-LABEL: @inttoptr_free_cost_user(
|
|
; CHECK-NOT: call
|
|
%x = call i32 @inttoptr_free_cost(i32 %begin, i32 %end, i32 9)
|
|
ret i32 %x
|
|
}
|
|
|
|
; The inttoptrs have a cost since it is a larger integer to a smaller
|
|
; pointer size
|
|
define i32 @inttoptr_cost_smaller_ptr(i32 %a, i32 %b, i32 %c) {
|
|
%p1 = inttoptr i32 %a to i32 addrspace(2)*
|
|
%p2 = inttoptr i32 %b to i32 addrspace(2)*
|
|
%p3 = inttoptr i32 %c to i32 addrspace(2)*
|
|
%t1 = load i32 addrspace(2)* %p1
|
|
%t2 = load i32 addrspace(2)* %p2
|
|
%t3 = load i32 addrspace(2)* %p3
|
|
%s = add i32 %t1, %t2
|
|
%s1 = add i32 %s, %t3
|
|
ret i32 %s1
|
|
}
|
|
|
|
define i32 @inttoptr_cost_smaller_ptr_user(i32 %begin, i32 %end) {
|
|
; CHECK-LABEL: @inttoptr_cost_smaller_ptr_user(
|
|
; CHECK: call
|
|
%x = call i32 @inttoptr_cost_smaller_ptr(i32 %begin, i32 %end, i32 9)
|
|
ret i32 %x
|
|
}
|
|
|