| ; RUN: opt < %s -passes=sroa -S | FileCheck %s |
| target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n8:16:32:64" |
| |
| define { i32, i32 } @test0(i32 %x, i32 %y, { i32, i32 } %v) { |
| ; CHECK-LABEL: @test0( |
| ; CHECK-NOT: alloca |
| ; CHECK: insertvalue { i32, i32 } |
| ; CHECK: insertvalue { i32, i32 } |
| ; CHECK: ret { i32, i32 } |
| |
| entry: |
| %a = alloca { i32, i32 } |
| |
| store { i32, i32 } %v, ptr %a |
| |
| %gep1 = getelementptr inbounds { i32, i32 }, ptr %a, i32 0, i32 0 |
| store i32 %x, ptr %gep1 |
| %gep2 = getelementptr inbounds { i32, i32 }, ptr %a, i32 0, i32 1 |
| store i32 %y, ptr %gep2 |
| |
| %result = load { i32, i32 }, ptr %a |
| ret { i32, i32 } %result |
| } |
| |
| define { i32, i32 } @test1(i32 %x, i32 %y) { |
| ; FIXME: This may be too conservative. Duncan argues that we are allowed to |
| ; split the volatile load and store here but must produce volatile scalar loads |
| ; and stores from them. |
| ; CHECK-LABEL: @test1( |
| ; CHECK: alloca |
| ; CHECK: alloca |
| ; CHECK: load volatile { i32, i32 }, ptr |
| ; CHECK: store volatile { i32, i32 } |
| ; CHECK: ret { i32, i32 } |
| |
| entry: |
| %a = alloca { i32, i32 } |
| %b = alloca { i32, i32 } |
| |
| %gep1 = getelementptr inbounds { i32, i32 }, ptr %a, i32 0, i32 0 |
| store i32 %x, ptr %gep1 |
| %gep2 = getelementptr inbounds { i32, i32 }, ptr %a, i32 0, i32 1 |
| store i32 %y, ptr %gep2 |
| |
| %result = load volatile { i32, i32 }, ptr %a |
| store volatile { i32, i32 } %result, ptr %b |
| ret { i32, i32 } %result |
| } |