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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -memcpyopt < %s -enable-memcpyopt-memoryssa=0 | FileCheck %s
; RUN: opt -S -memcpyopt < %s -enable-memcpyopt-memoryssa=1 -verify-memoryssa | FileCheck %s
declare void @may_throw(i32* nocapture %x)
define void @test1(i32* nocapture noalias dereferenceable(4) %x) {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[T:%.*]] = alloca i32, align 4
; CHECK-NEXT: call void @may_throw(i32* nonnull [[T]])
; CHECK-NEXT: [[LOAD:%.*]] = load i32, i32* [[T]], align 4
; CHECK-NEXT: store i32 [[LOAD]], i32* [[X:%.*]], align 4
; CHECK-NEXT: ret void
;
entry:
%t = alloca i32, align 4
call void @may_throw(i32* nonnull %t)
%load = load i32, i32* %t, align 4
store i32 %load, i32* %x, align 4
ret void
}
declare void @always_throws()
define void @test2(i32* nocapture noalias dereferenceable(4) %x) {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[T:%.*]] = alloca i32, align 4
; CHECK-NEXT: call void @may_throw(i32* nonnull [[T]]) [[ATTR0:#.*]]
; CHECK-NEXT: [[LOAD:%.*]] = load i32, i32* [[T]], align 4
; CHECK-NEXT: call void @always_throws()
; CHECK-NEXT: store i32 [[LOAD]], i32* [[X:%.*]], align 4
; CHECK-NEXT: ret void
;
entry:
%t = alloca i32, align 4
call void @may_throw(i32* nonnull %t) nounwind
%load = load i32, i32* %t, align 4
call void @always_throws()
store i32 %load, i32* %x, align 4
ret void
}
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