| ; RUN: opt < %s -disable-basic-aa -globals-aa -dse -S | FileCheck %s |
| |
| @X = internal global i32 4 |
| |
| define i32 @test0() { |
| ; CHECK-LABEL: @test0 |
| ; CHECK: store i32 0, i32* @X |
| ; CHECK-NEXT: call i32 @func_readonly() #0 |
| ; CHECK-NEXT: store i32 1, i32* @X |
| store i32 0, i32* @X |
| %x = call i32 @func_readonly() #0 |
| store i32 1, i32* @X |
| ret i32 %x |
| } |
| |
| define i32 @test1() { |
| ; CHECK-LABEL: @test1 |
| ; CHECK-NOT: store |
| ; CHECK: call i32 @func_read_argmem_only() #1 |
| ; CHECK-NEXT: store i32 3, i32* @X |
| store i32 2, i32* @X |
| %x = call i32 @func_read_argmem_only() #1 |
| store i32 3, i32* @X |
| ret i32 %x |
| } |
| |
| declare i32 @func_readonly() #0 |
| declare i32 @func_read_argmem_only() #1 |
| |
| attributes #0 = { readonly nounwind } |
| attributes #1 = { readonly argmemonly nounwind } |