mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-13 14:35:54 +00:00
2658ebda83
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
56 lines
1.9 KiB
LLVM
56 lines
1.9 KiB
LLVM
; REQUIRES: asserts
|
|
; RUN: opt < %s -S -debug-only=loop-unroll -loop-unroll -unroll-runtime -unroll-peel-multi-deopt-exit 2>&1 | FileCheck %s
|
|
; RUN: opt < %s -S -debug-only=loop-unroll -unroll-peel-multi-deopt-exit -passes='require<profile-summary>,function(require<opt-remark-emit>,loop-unroll)' 2>&1 | FileCheck %s
|
|
|
|
; Regression test for setting the correct idom for exit blocks.
|
|
|
|
; CHECK: Loop Unroll: F[basic]
|
|
; CHECK: PEELING loop %for.body with iteration count 2!
|
|
|
|
define i32 @basic(i32* %p, i32 %k, i1 %c1, i1 %c2) #0 !prof !3 {
|
|
entry:
|
|
%cmp3 = icmp slt i32 0, %k
|
|
br i1 %cmp3, label %for.body.lr.ph, label %for.end
|
|
|
|
for.body.lr.ph: ; preds = %entry
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body.lr.ph, %for.body
|
|
%i.05 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %latch ]
|
|
%p.addr.04 = phi i32* [ %p, %for.body.lr.ph ], [ %incdec.ptr, %latch ]
|
|
%incdec.ptr = getelementptr inbounds i32, i32* %p.addr.04, i32 1
|
|
store i32 %i.05, i32* %p.addr.04, align 4
|
|
%inc = add nsw i32 %i.05, 1
|
|
%cmp = icmp slt i32 %inc, %k
|
|
br i1 %c1, label %continue, label %to_side_exit
|
|
|
|
continue:
|
|
br i1 %c2, label %latch, label %side_exit, !prof !2
|
|
|
|
latch:
|
|
br i1 %cmp, label %for.body, label %for.cond.for.end_crit_edge, !prof !1
|
|
|
|
for.cond.for.end_crit_edge: ; preds = %for.body
|
|
br label %for.end
|
|
|
|
to_side_exit:
|
|
br i1 %c2, label %continue, label %side_exit, !prof !2
|
|
|
|
|
|
for.end: ; preds = %for.cond.for.end_crit_edge, %entry
|
|
%res = phi i32 [ 0, %entry ], [ %inc, %for.cond.for.end_crit_edge ]
|
|
ret i32 %res
|
|
|
|
side_exit:
|
|
%rval = call i32(...) @llvm.experimental.deoptimize.i32() [ "deopt"(i32 %inc) ]
|
|
ret i32 %rval
|
|
}
|
|
|
|
declare i32 @llvm.experimental.deoptimize.i32(...)
|
|
|
|
attributes #0 = { nounwind }
|
|
|
|
!1 = !{!"branch_weights", i32 1, i32 1}
|
|
!2 = !{!"branch_weights", i32 1, i32 0}
|
|
!3 = !{!"function_entry_count", i64 1}
|