| ; RUN: opt -passes='print<inline-cost>' -disable-output %s 2>&1 | FileCheck %s |
| |
| ; SROA analysis should yield non-zero savings for allocas passed through invariant group intrinsics |
| ; CHECK: SROACostSavings: 10 |
| |
| declare i8* @llvm.launder.invariant.group.p0i8(i8*) |
| declare i8* @llvm.strip.invariant.group.p0i8(i8*) |
| |
| declare void @b() |
| |
| define i32 @f() { |
| %a = alloca i32 |
| %r = call i32 @g(i32* %a) |
| ret i32 %r |
| } |
| |
| define i32 @g(i32* %a) { |
| %a_i8 = bitcast i32* %a to i8* |
| %a_inv_i8 = call i8* @llvm.launder.invariant.group.p0i8(i8* %a_i8) |
| %a_inv = bitcast i8* %a_inv_i8 to i32* |
| %i1 = load i32, i32* %a_inv |
| %i2 = load i32, i32* %a_inv |
| %i3 = add i32 %i1, %i2 |
| %t = call i8* @llvm.strip.invariant.group.p0i8(i8* %a_inv_i8) |
| ret i32 %i3 |
| } |