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[LoopUnroll] Extend test case with additional loop with larger TC.

This commit is contained in:
Florian Hahn 2020-05-17 13:55:11 +01:00
parent 9e2a99e5b7
commit b54a663312
1 changed files with 57 additions and 1 deletions
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58
llvm/test/Transforms/LoopUnroll/pr33437.ll
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@ -1,5 +1,5 @@
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -loop-unroll -unroll-peel-count=1 < %s | FileCheck %s
; RUN: opt -S -loop-unroll -unroll-count=4 -unroll-peel-count=1 < %s | FileCheck %s
declare zeroext i8 @patatino()
@ -41,3 +41,59 @@ loop:
%call593 = tail call zeroext i8 @patatino()
br i1 false, label %loop, label %loopexit
}
define void @tinky2() {
; CHECK-LABEL: @tinky2(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[NEXT:%.*]]
; CHECK: loopexit.loopexit:
; CHECK-NEXT: br label [[LOOPEXIT:%.*]]
; CHECK: loopexit:
; CHECK-NEXT: ret void
; CHECK: next:
; CHECK-NEXT: br label [[LOOP_PEEL_BEGIN:%.*]]
; CHECK: loop.peel.begin:
; CHECK-NEXT: br label [[LOOP_PEEL:%.*]]
; CHECK: loop.peel:
; CHECK-NEXT: [[CALL593_PEEL:%.*]] = tail call zeroext i8 @patatino()
; CHECK-NEXT: [[B_NEXT_PEEL:%.*]] = add i32 0, 1
; CHECK-NEXT: [[COND_PEEL:%.*]] = icmp ne i32 0, 30
; CHECK-NEXT: br i1 [[COND_PEEL]], label [[LOOP_PEEL_NEXT:%.*]], label [[LOOPEXIT]]
; CHECK: loop.peel.next:
; CHECK-NEXT: br label [[LOOP_PEEL_NEXT1:%.*]]
; CHECK: loop.peel.next1:
; CHECK-NEXT: br label [[NEXT_PEEL_NEWPH:%.*]]
; CHECK: next.peel.newph:
; CHECK-NEXT: br label [[LOOP:%.*]]
; CHECK: loop:
; CHECK-NEXT: [[B:%.*]] = phi i32 [ [[B_NEXT_PEEL]], [[NEXT_PEEL_NEWPH]] ], [ [[B_NEXT_3:%.*]], [[LOOP_2:%.*]] ]
; CHECK-NEXT: [[CALL593:%.*]] = tail call zeroext i8 @patatino()
; CHECK-NEXT: [[B_NEXT:%.*]] = add nuw nsw i32 [[B]], 1
; CHECK-NEXT: [[CALL593_1:%.*]] = tail call zeroext i8 @patatino()
; CHECK-NEXT: [[B_NEXT_1:%.*]] = add nuw nsw i32 [[B_NEXT]], 1
; CHECK-NEXT: [[COND_1:%.*]] = icmp ne i32 [[B_NEXT]], 30
; CHECK-NEXT: br i1 [[COND_1]], label [[LOOP_2]], label [[LOOPEXIT_LOOPEXIT:%.*]], !llvm.loop !0
; CHECK: loop.2:
; CHECK-NEXT: [[CALL593_2:%.*]] = tail call zeroext i8 @patatino()
; CHECK-NEXT: [[B_NEXT_2:%.*]] = add nuw nsw i32 [[B_NEXT_1]], 1
; CHECK-NEXT: [[CALL593_3:%.*]] = tail call zeroext i8 @patatino()
; CHECK-NEXT: [[B_NEXT_3]] = add nuw nsw i32 [[B_NEXT_2]], 1
; CHECK-NEXT: br label [[LOOP]], !llvm.loop !2
;
entry:
br label %next
loopexit:
ret void
next:
br label %loop
loop:
%a = phi i8 [ undef, %next ], [ %call593, %loop ]
%b = phi i32 [ 0, %next ], [ %b.next, %loop ]
%call593 = tail call zeroext i8 @patatino()
%b.next = add i32 %b, 1
%cond = icmp ne i32 %b, 30
br i1 %cond, label %loop, label %loopexit
}