mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-25 20:23:11 +01:00
ecebed8b85
Update MSSA for blocks cloned when doing partial unswitching. Enable additional testing with MSSA. Resolves PR43641. llvm-svn: 374850
101 lines
4.4 KiB
LLVM
101 lines
4.4 KiB
LLVM
;
|
|
; There should be just a single copy of loop when strictest mutiplier candidates
|
|
; formula (unscaled candidates == 0) is enforced:
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=1 \
|
|
; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=8 \
|
|
; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=1 \
|
|
; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=0 -unswitch-siblings-toplevel-div=8 \
|
|
; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP1
|
|
;
|
|
; With relaxed candidates multiplier (unscaled candidates == 8) we should allow
|
|
; some unswitches to happen until siblings multiplier starts kicking in:
|
|
; With relaxed candidates multiplier (unscaled candidates == 8) we should allow
|
|
; some unswitches to happen until siblings multiplier starts kicking in:
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=1 \
|
|
; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP5
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=1 \
|
|
; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP5
|
|
;
|
|
; With relaxed candidates multiplier (unscaled candidates == 8) and with relaxed
|
|
; siblings multiplier for top-level loops (toplevel-div == 8) we should get
|
|
; 2^(num conds) == 2^5 == 32
|
|
; copies of the loop:
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=8 \
|
|
; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=true \
|
|
; RUN: -unswitch-num-initial-unscaled-candidates=8 -unswitch-siblings-toplevel-div=8 \
|
|
; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32
|
|
;
|
|
; Similarly get
|
|
; 2^(num conds) == 2^5 == 32
|
|
; copies of the loop when cost multiplier is disabled:
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=false \
|
|
; RUN: -passes='loop(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32
|
|
;
|
|
; RUN: opt < %s -enable-unswitch-cost-multiplier=false \
|
|
; RUN: -passes='loop-mssa(unswitch<nontrivial>),print<loops>' -disable-output 2>&1 | FileCheck %s --check-prefixes=LOOP32
|
|
;
|
|
; Single loop, not unswitched
|
|
; LOOP1: Loop at depth 1 containing:
|
|
; LOOP1-NOT: Loop at depth 1 containing:
|
|
|
|
; 5 loops, unswitched 4 times
|
|
; LOOP5-COUNT-5: Loop at depth 1 containing:
|
|
; LOOP5-NOT: Loop at depth 1 containing:
|
|
|
|
; 32 loops, fully unswitched
|
|
; LOOP32-COUNT-32: Loop at depth 1 containing:
|
|
; LOOP32-NOT: Loop at depth 1 containing:
|
|
|
|
define void @loop_simple5(i32* %addr, i1 %c1, i1 %c2, i1 %c3, i1 %c4, i1 %c5) {
|
|
entry:
|
|
br label %loop
|
|
loop:
|
|
%iv = phi i32 [0, %entry], [%iv.next, %loop_latch]
|
|
%iv.next = add i32 %iv, 1
|
|
br i1 %c1, label %loop_next1, label %loop_next1_right
|
|
loop_next1_right:
|
|
br label %loop_next1
|
|
loop_next1:
|
|
br i1 %c2, label %loop_next2, label %loop_next2_right
|
|
loop_next2_right:
|
|
br label %loop_next2
|
|
loop_next2:
|
|
br i1 %c3, label %loop_next3, label %loop_next3_right
|
|
loop_next3_right:
|
|
br label %loop_next3
|
|
loop_next3:
|
|
br i1 %c4, label %loop_next4, label %loop_next4_right
|
|
loop_next4_right:
|
|
br label %loop_next4
|
|
loop_next4:
|
|
br i1 %c5, label %loop_latch, label %loop_latch_right
|
|
loop_latch_right:
|
|
br label %loop_latch
|
|
loop_latch:
|
|
store volatile i32 0, i32* %addr
|
|
%test_loop = icmp slt i32 %iv, 50
|
|
br i1 %test_loop, label %loop, label %exit
|
|
exit:
|
|
ret void
|
|
}
|