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llvm-mirror/test/Transforms/Inline/byval_lifetime.ll
Matt Arsenault 4bf7d5872e OpaquePtr: Bulk update tests to use typed byval
Upgrade of the IR text tests should be the only thing blocking making
typed byval mandatory. Partially done through regex and partially
manual.
2020-11-20 14:00:46 -05:00

27 lines
843 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(%struct.foo) 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(%struct.foo) align 8 @gFoo, i32 %argc)
ret i32 %call
}