1; RUN: opt -O3 -S < %s | FileCheck %s 2 3; Arg promotion eliminates the struct argument but may leave dead arguments after its work 4 5%struct.ss = type { i32, i64 } 6 7@dummy = global i32 0 8; CHECK: [[DUMMY:@.*]] = local_unnamed_addr global i32 0 9 10define internal void @f(ptr byval(%struct.ss) align 8 %b, ptr byval(i32) align 4 %X) noinline nounwind { 11; CHECK-LABEL: define {{[^@]+}}@f 12; CHECK-SAME: (i32 [[B_0:%.*]]){{[^#]*}} #[[ATTR0:[0-9]+]] { 13; CHECK-NEXT: entry: 14; CHECK-NEXT: [[TEMP:%.*]] = add i32 [[B_0]], 1 15; CHECK-NEXT: store i32 [[TEMP]], ptr [[DUMMY]], align 4 16; CHECK-NEXT: ret void 17; 18entry: 19 %temp1 = load i32, ptr %b, align 4 20 %temp2 = add i32 %temp1, 1 21 store i32 %temp2, ptr @dummy 22 store i32 %temp2, ptr %X 23 ret void 24} 25 26define i32 @test(ptr %X) { 27; CHECK-LABEL: define {{[^@]+}}@test 28; CHECK-SAME: (ptr {{[^%]*}} [[X:%.*]]){{[^#]*}} #[[ATTR1:[0-9]+]] { 29; CHECK-NEXT: entry: 30; CHECK-NEXT: tail call {{.*}}void @f(i32 1) 31; CHECK-NEXT: ret i32 0 32; 33entry: 34 %S = alloca %struct.ss, align 8 35 store i32 1, ptr %S, align 8 36 %temp4 = getelementptr %struct.ss, ptr %S, i32 0, i32 1 37 store i64 2, ptr %temp4, align 4 38 call void @f( ptr byval(%struct.ss) align 8 %S, ptr byval(i32) align 4 %X) 39 ret i32 0 40} 41