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llvm-mirror/test/Transforms/Inline/alloca_test.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

57 lines
1.5 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; This test ensures that alloca instructions in the entry block for an inlined
; function are moved to the top of the function they are inlined into.
;
; RUN: opt -S -inline < %s | FileCheck %s
; RUN: opt -S -passes='cgscc(inline)' < %s | FileCheck %s
define i32 @func(i32 %i) {
%X = alloca i32
store i32 %i, i32* %X
ret i32 %i
}
declare void @bar()
define i32 @main(i32 %argc) {
; CHECK-LABEL: @main(
; CHECK-NEXT: Entry:
; CHECK-NEXT: [[X_I:%.*]] = alloca i32
;
Entry:
call void @bar( )
%X = call i32 @func( i32 7 )
%Y = add i32 %X, %argc
ret i32 %Y
}
; https://llvm.org/bugs/show_bug.cgi?id=27277
; Don't assume that the size is a ConstantInt (an undef value is also a constant).
define void @PR27277(i32 %p1) {
; CHECK-LABEL: @PR27277(
; CHECK-NEXT: [[VLA:%.*]] = alloca double, i32 %p1
; CHECK-NEXT: call void @PR27277(i32 undef)
; CHECK-NEXT: ret void
;
%vla = alloca double, i32 %p1
call void @PR27277(i32 undef)
ret void
}
; Don't assume that the size is a ConstantInt (a ConstExpr is also a constant).
@GV = common global i32* null
define void @PR27277_part2(i32 %p1) {
; CHECK-LABEL: @PR27277_part2(
; CHECK-NEXT: [[VLA:%.*]] = alloca double, i32 %p1
; CHECK-NEXT: call void @PR27277_part2(i32 ptrtoint (i32** @GV to i32))
; CHECK-NEXT: ret void
;
%vla = alloca double, i32 %p1
call void @PR27277_part2(i32 ptrtoint (i32** @GV to i32))
ret void
}