Home | History | Annotate | Download | only in ArgumentPromotion
      1 ; RUN: opt %s -argpromotion -scalarrepl -S | FileCheck %s
      2 
      3 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128"
      4 
      5 %struct.ss = type { i32, i32 }
      6 
      7 ; Argpromote + scalarrepl should change this to passing the two integers by value.
      8 define internal i32 @f(%struct.ss* inalloca  %s) {
      9 entry:
     10   %f0 = getelementptr %struct.ss* %s, i32 0, i32 0
     11   %f1 = getelementptr %struct.ss* %s, i32 0, i32 1
     12   %a = load i32* %f0, align 4
     13   %b = load i32* %f1, align 4
     14   %r = add i32 %a, %b
     15   ret i32 %r
     16 }
     17 ; CHECK-LABEL: define internal i32 @f
     18 ; CHECK-NOT: load
     19 ; CHECK: ret
     20 
     21 define i32 @main() {
     22 entry:
     23   %S = alloca inalloca %struct.ss
     24   %f0 = getelementptr %struct.ss* %S, i32 0, i32 0
     25   %f1 = getelementptr %struct.ss* %S, i32 0, i32 1
     26   store i32 1, i32* %f0, align 4
     27   store i32 2, i32* %f1, align 4
     28   %r = call i32 @f(%struct.ss* inalloca %S)
     29   ret i32 %r
     30 }
     31 ; CHECK-LABEL: define i32 @main
     32 ; CHECK-NOT: load
     33 ; CHECK: ret
     34 
     35 ; Argpromote can't promote %a because of the icmp use.
     36 define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b) nounwind  {
     37 ; CHECK: define internal i1 @g(%struct.ss* %a, %struct.ss* inalloca %b)
     38 entry:
     39   %c = icmp eq %struct.ss* %a, %b
     40   ret i1 %c
     41 }
     42 
     43 define i32 @test() {
     44 entry:
     45   %S = alloca inalloca %struct.ss
     46   %c = call i1 @g(%struct.ss* %S, %struct.ss* inalloca %S)
     47 ; CHECK: call i1 @g(%struct.ss* %S, %struct.ss* inalloca %S)
     48   ret i32 0
     49 }
     50