1
0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-11-22 18:54:02 +01:00
llvm-mirror/test/Transforms/LoopUnroll/basic.ll
Arthur Eubanks 2658ebda83 [NewPM][LoopUnroll] Rename unroll* to loop-unroll*
The legacy pass is called "loop-unroll", but in the new PM it's called "unroll".
Also applied to unroll-and-jam and unroll-full.

Fixes various check-llvm tests when NPM is turned on.

Reviewed By: Whitney, dmgreen

Differential Revision: https://reviews.llvm.org/D82590
2020-06-26 09:28:32 -07:00

49 lines
1.3 KiB
LLVM

; RUN: opt < %s -loop-unroll -S | FileCheck %s
; RUN: opt < %s -passes='require<opt-remark-emit>,loop-unroll' -S | FileCheck %s
; This should not unroll since the address of the loop header is taken.
; CHECK-LABEL: @test1(
; CHECK: store i8* blockaddress(@test1, %l1), i8** %P
; CHECK: l1:
; CHECK-NEXT: phi i32
; rdar://8287027
define i32 @test1(i8** %P) nounwind ssp {
entry:
store i8* blockaddress(@test1, %l1), i8** %P
br label %l1
l1: ; preds = %l1, %entry
%x.0 = phi i32 [ 0, %entry ], [ %inc, %l1 ]
%inc = add nsw i32 %x.0, 1
%exitcond = icmp eq i32 %inc, 3
br i1 %exitcond, label %l2, label %l1
l2: ; preds = %l1
ret i32 0
}
; This should not unroll since the call is 'noduplicate'.
; CHECK-LABEL: @test2(
define i32 @test2(i8** %P) nounwind ssp {
entry:
br label %l1
l1: ; preds = %l1, %entry
%x.0 = phi i32 [ 0, %entry ], [ %inc, %l1 ]
; CHECK: call void @f()
; CHECK-NOT: call void @f()
call void @f() noduplicate
%inc = add nsw i32 %x.0, 1
%exitcond = icmp eq i32 %inc, 3
br i1 %exitcond, label %l2, label %l1
l2: ; preds = %l1
ret i32 0
; CHECK: }
}
declare void @f()