; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -passes=gvn-hoist -S < %s | FileCheck %s target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" target triple = "i686-pc-windows-msvc18.0.0" %struct.S = type { ptr, ptr } declare void @f(ptr inalloca(<{ %struct.S }>)) ; Check that we don't clone the %x alloca and insert it in the live range of ; %argmem, which would break the inalloca contract. define void @test(i1 %b) { ; CHECK-LABEL: @test( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[X:%.*]] = alloca i8, align 1 ; CHECK-NEXT: [[INALLOCA_SAVE:%.*]] = call ptr @llvm.stacksave.p0() ; CHECK-NEXT: [[ARGMEM:%.*]] = alloca inalloca <{ [[STRUCT_S:%.*]] }>, align 4 ; CHECK-NEXT: [[TMP0:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARGMEM]], i32 0, i32 1 ; CHECK-NEXT: store ptr [[X]], ptr [[TMP0]], align 4 ; CHECK-NEXT: br i1 [[B:%.*]], label [[TRUE:%.*]], label [[FALSE:%.*]] ; CHECK: true: ; CHECK-NEXT: [[P:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARGMEM]], i32 0, i32 1 ; CHECK-NEXT: br label [[EXIT:%.*]] ; CHECK: false: ; CHECK-NEXT: [[P2:%.*]] = getelementptr inbounds [[STRUCT_S]], ptr [[ARGMEM]], i32 0, i32 1 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: call void @f(ptr inalloca(<{ [[STRUCT_S]] }>) [[ARGMEM]]) ; CHECK-NEXT: call void @llvm.stackrestore.p0(ptr [[INALLOCA_SAVE]]) ; CHECK-NEXT: ret void ; entry: %x = alloca i8 %inalloca.save = call ptr @llvm.stacksave() %argmem = alloca inalloca <{ %struct.S }>, align 4 br i1 %b, label %true, label %false true: %p = getelementptr inbounds %struct.S, ptr %argmem, i32 0, i32 1 store ptr %x, ptr %p, align 4 br label %exit false: %p2 = getelementptr inbounds %struct.S, ptr %argmem, i32 0, i32 1 store ptr %x, ptr %p2, align 4 br label %exit exit: call void @f(ptr inalloca(<{ %struct.S }>) %argmem) call void @llvm.stackrestore(ptr %inalloca.save) ret void } declare ptr @llvm.stacksave() declare void @llvm.stackrestore(ptr)