25 lines
662 B
LLVM
25 lines
662 B
LLVM
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; RUN: opt -passes='print<inline-cost>' -disable-output %s 2>&1 | FileCheck %s
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; SROA analysis should yield non-zero savings for allocas passed through invariant group intrinsics
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; CHECK: SROACostSavings: 10
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declare ptr @llvm.launder.invariant.group.p0(ptr)
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declare ptr @llvm.strip.invariant.group.p0(ptr)
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declare void @b()
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define i32 @f() {
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%a = alloca i32
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%r = call i32 @g(ptr %a)
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ret i32 %r
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}
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define i32 @g(ptr %a) {
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%a_inv_i8 = call ptr @llvm.launder.invariant.group.p0(ptr %a)
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%i1 = load i32, ptr %a_inv_i8
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%i2 = load i32, ptr %a_inv_i8
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%i3 = add i32 %i1, %i2
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%t = call ptr @llvm.strip.invariant.group.p0(ptr %a_inv_i8)
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ret i32 %i3
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}
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