diff options
Diffstat (limited to 'llvm/test/Transforms/SimplifyCFG/multiple-phis.ll')
| -rw-r--r-- | llvm/test/Transforms/SimplifyCFG/multiple-phis.ll | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/llvm/test/Transforms/SimplifyCFG/multiple-phis.ll b/llvm/test/Transforms/SimplifyCFG/multiple-phis.ll deleted file mode 100644 index f8a18a05bab..00000000000 --- a/llvm/test/Transforms/SimplifyCFG/multiple-phis.ll +++ /dev/null @@ -1,59 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt -simplifycfg -keep-loops=false -S < %s | FileCheck %s -; RUN: opt -passes='simplify-cfg<no-keep-loops>' -S < %s | FileCheck %s - -; It's not worthwhile to if-convert one of the phi nodes and leave -; the other behind, because that still requires a branch. If -; SimplifyCFG if-converts one of the phis, it should do both. - -define i32 @upper_bound(i32* %r, i32 %high, i32 %k) nounwind { -; CHECK-LABEL: @upper_bound( -; CHECK-NEXT: entry: -; CHECK-NEXT: br label [[WHILE_COND:%.*]] -; CHECK: while.cond: -; CHECK-NEXT: [[HIGH_ADDR_0:%.*]] = phi i32 [ [[HIGH:%.*]], [[ENTRY:%.*]] ], [ [[DIV_HIGH_ADDR_0:%.*]], [[WHILE_BODY:%.*]] ] -; CHECK-NEXT: [[LOW_0:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[LOW_0_ADD2:%.*]], [[WHILE_BODY]] ] -; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[LOW_0]], [[HIGH_ADDR_0]] -; CHECK-NEXT: br i1 [[CMP]], label [[WHILE_BODY]], label [[WHILE_END:%.*]] -; CHECK: while.body: -; CHECK-NEXT: [[ADD:%.*]] = add i32 [[LOW_0]], [[HIGH_ADDR_0]] -; CHECK-NEXT: [[DIV:%.*]] = udiv i32 [[ADD]], 2 -; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[DIV]] to i64 -; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[R:%.*]], i64 [[IDXPROM]] -; CHECK-NEXT: [[TMP0:%.*]] = load i32, i32* [[ARRAYIDX]] -; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[K:%.*]], [[TMP0]] -; CHECK-NEXT: [[ADD2:%.*]] = add i32 [[DIV]], 1 -; CHECK-NEXT: [[DIV_HIGH_ADDR_0]] = select i1 [[CMP1]], i32 [[DIV]], i32 [[HIGH_ADDR_0]] -; CHECK-NEXT: [[LOW_0_ADD2]] = select i1 [[CMP1]], i32 [[LOW_0]], i32 [[ADD2]] -; CHECK-NEXT: br label [[WHILE_COND]] -; CHECK: while.end: -; CHECK-NEXT: ret i32 [[LOW_0]] -; -entry: - br label %while.cond - -while.cond: ; preds = %if.then, %if.else, %entry - %high.addr.0 = phi i32 [ %high, %entry ], [ %div, %if.then ], [ %high.addr.0, %if.else ] - %low.0 = phi i32 [ 0, %entry ], [ %low.0, %if.then ], [ %add2, %if.else ] - %cmp = icmp ult i32 %low.0, %high.addr.0 - br i1 %cmp, label %while.body, label %while.end - -while.body: ; preds = %while.cond - %add = add i32 %low.0, %high.addr.0 - %div = udiv i32 %add, 2 - %idxprom = zext i32 %div to i64 - %arrayidx = getelementptr inbounds i32, i32* %r, i64 %idxprom - %0 = load i32, i32* %arrayidx - %cmp1 = icmp ult i32 %k, %0 - br i1 %cmp1, label %if.then, label %if.else - -if.then: ; preds = %while.body - br label %while.cond - -if.else: ; preds = %while.body - %add2 = add i32 %div, 1 - br label %while.cond - -while.end: ; preds = %while.cond - ret i32 %low.0 -} |
