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llvm-mirror/test/Transforms/Inline/byval_lifetime.ll
Chandler Carruth 3a1d9fe91a [PM] Turn on the new PM's inliner in addition to the current one for
most of the inliner test cases.

The inliner involves a bunch of interesting code and tends to be where
most of the issues I've seen experimenting with the new PM lie. All of
these test cases pass, but I'd like to keep some more thorough coverage
here so doing a fairly blanket enabling.

There are a handful of interesting tests I've not enabled yet because
they're focused on the always inliner, or on functionality that doesn't
(yet) exist in the inliner.

llvm-svn: 290592
2016-12-27 07:18:43 +00:00

27 lines
817 B
LLVM

; RUN: opt -S -inline < %s | FileCheck %s
; RUN: opt -passes='cgscc(inline)' -S < %s | FileCheck %s
; By inlining foo, an alloca is created in main to hold the byval argument, so
; a lifetime marker should be generated as well by default.
%struct.foo = type { i32, [16 x i32] }
@gFoo = global %struct.foo zeroinitializer, align 8
define i32 @foo(%struct.foo* byval align 8 %f, i32 %a) {
entry:
%a1 = getelementptr inbounds %struct.foo, %struct.foo* %f, i32 0, i32 1
%arrayidx = getelementptr inbounds [16 x i32], [16 x i32]* %a1, i32 0, i32 %a
%tmp2 = load i32, i32* %arrayidx, align 1
ret i32 %tmp2
}
define i32 @main(i32 %argc, i8** %argv) {
; CHECK-LABEL: @main
; CHECK: llvm.lifetime.start
; CHECK: memcpy
entry:
%call = call i32 @foo(%struct.foo* byval align 8 @gFoo, i32 %argc)
ret i32 %call
}