diff options
Diffstat (limited to 'llvm/test/Transforms/IndVarSimplify/widen-loop-comp.ll')
-rw-r--r-- | llvm/test/Transforms/IndVarSimplify/widen-loop-comp.ll | 355 |
1 files changed, 0 insertions, 355 deletions
diff --git a/llvm/test/Transforms/IndVarSimplify/widen-loop-comp.ll b/llvm/test/Transforms/IndVarSimplify/widen-loop-comp.ll deleted file mode 100644 index 5630c5dd075..00000000000 --- a/llvm/test/Transforms/IndVarSimplify/widen-loop-comp.ll +++ /dev/null @@ -1,355 +0,0 @@ -; RUN: opt < %s -indvars -S | FileCheck %s -target triple = "aarch64--linux-gnu" - -; Provide legal integer types. -target datalayout = "n8:16:32:64" - - -; Check the loop exit i32 compare instruction and operand are widened to i64 -; instead of truncating IV before its use in the i32 compare instruction. - -@idx = common global i32 0, align 4 -@e = common global i32 0, align 4 -@ptr = common global i32* null, align 8 - -; CHECK-LABEL: @test1 -; CHECK: for.body.lr.ph: -; CHECK: sext i32 -; CHECK: for.cond: -; CHECK: icmp slt i64 -; CHECK: for.body: -; CHECK: phi i64 - -define i32 @test1() { -entry: - store i32 -1, i32* @idx, align 4 - %0 = load i32, i32* @e, align 4 - %cmp4 = icmp slt i32 %0, 0 - br i1 %cmp4, label %for.end.loopexit, label %for.body.lr.ph - -for.body.lr.ph: - %1 = load i32*, i32** @ptr, align 8 - %2 = load i32, i32* @e, align 4 - br label %for.body - -for.cond: - %inc = add nsw i32 %i.05, 1 - %cmp = icmp slt i32 %i.05, %2 - br i1 %cmp, label %for.body, label %for.cond.for.end.loopexit_crit_edge - -for.body: - %i.05 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.cond ] - %idxprom = sext i32 %i.05 to i64 - %arrayidx = getelementptr inbounds i32, i32* %1, i64 %idxprom - %3 = load i32, i32* %arrayidx, align 4 - %tobool = icmp eq i32 %3, 0 - br i1 %tobool, label %if.then, label %for.cond - -if.then: - %i.05.lcssa = phi i32 [ %i.05, %for.body ] - store i32 %i.05.lcssa, i32* @idx, align 4 - br label %for.end - -for.cond.for.end.loopexit_crit_edge: - br label %for.end.loopexit - -for.end.loopexit: - br label %for.end - -for.end: - %4 = load i32, i32* @idx, align 4 - ret i32 %4 -} - -; CHECK-LABEL: @test2 -; CHECK: for.body4.us -; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 -; CHECK: %cmp2.us = icmp ult i64 -; CHECK-NOT: %2 = trunc i64 %indvars.iv.next to i32 -; CHECK-NOT: %cmp2.us = icmp slt i32 - -define void @test2([8 x i8]* %a, i8* %b, i8 %limit) { -entry: - %conv = zext i8 %limit to i32 - br i1 undef, label %for.cond1.preheader, label %for.cond1.preheader.us - -for.cond1.preheader.us: - %storemerge5.us = phi i32 [ 0, %entry ], [ %inc14.us, %for.inc13.us ] - br i1 true, label %for.body4.lr.ph.us, label %for.inc13.us - -for.inc13.us: - %inc14.us = add nsw i32 %storemerge5.us, 1 - %cmp.us = icmp slt i32 %inc14.us, 4 - br i1 %cmp.us, label %for.cond1.preheader.us, label %for.end - -for.body4.us: - %storemerge14.us = phi i32 [ 0, %for.body4.lr.ph.us ], [ %inc.us, %for.body4.us ] - %idxprom.us = sext i32 %storemerge14.us to i64 - %arrayidx6.us = getelementptr inbounds [8 x i8], [8 x i8]* %a, i64 %idxprom5.us, i64 %idxprom.us - %0 = load i8, i8* %arrayidx6.us, align 1 - %idxprom7.us = zext i8 %0 to i64 - %arrayidx8.us = getelementptr inbounds i8, i8* %b, i64 %idxprom7.us - %1 = load i8, i8* %arrayidx8.us, align 1 - store i8 %1, i8* %arrayidx6.us, align 1 - %inc.us = add nsw i32 %storemerge14.us, 1 - %cmp2.us = icmp slt i32 %inc.us, %conv - br i1 %cmp2.us, label %for.body4.us, label %for.inc13.us - -for.body4.lr.ph.us: - %idxprom5.us = sext i32 %storemerge5.us to i64 - br label %for.body4.us - -for.cond1.preheader: - %storemerge5 = phi i32 [ 0, %entry ], [ %inc14, %for.inc13 ] - br i1 false, label %for.inc13, label %for.inc13 - -for.inc13: - %inc14 = add nsw i32 %storemerge5, 1 - %cmp = icmp slt i32 %inc14, 4 - br i1 %cmp, label %for.cond1.preheader, label %for.end - -for.end: - ret void -} - -; CHECK-LABEL: @test3 -; CHECK: sext i32 %b -; CHECK: for.cond: -; CHECK: phi i64 -; CHECK: icmp slt i64 - -define i32 @test3(i32* %a, i32 %b) { -entry: - br label %for.cond - -for.cond: - %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] - %cmp = icmp slt i32 %i.0, %b - br i1 %cmp, label %for.body, label %for.end - -for.body: - %idxprom = sext i32 %i.0 to i64 - %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom - %0 = load i32, i32* %arrayidx, align 4 - %add = add nsw i32 %sum.0, %0 - %inc = add nsw i32 %i.0, 1 - br label %for.cond - -for.end: - ret i32 %sum.0 -} - -declare i32 @fn1(i8 signext) - -; PR21030 -; CHECK-LABEL: @test4 -; CHECK: for.body: -; CHECK: phi i32 -; CHECK: icmp sgt i8 - -define i32 @test4(i32 %a) { -entry: - br label %for.body - -for.body: - %c.07 = phi i8 [ -3, %entry ], [ %dec, %for.body ] - %conv6 = zext i8 %c.07 to i32 - %or = or i32 %a, %conv6 - %conv3 = trunc i32 %or to i8 - %call = call i32 @fn1(i8 signext %conv3) - %dec = add i8 %c.07, -1 - %cmp = icmp sgt i8 %dec, -14 - br i1 %cmp, label %for.body, label %for.end - -for.end: - ret i32 0 -} - -; CHECK-LABEL: @test5 -; CHECK: zext i32 %b -; CHECK: for.cond: -; CHECK: phi i64 -; CHECK: icmp ule i64 - -define i32 @test5(i32* %a, i32 %b) { -entry: - br label %for.cond - -for.cond: - %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] - %cmp = icmp ule i32 %i.0, %b - br i1 %cmp, label %for.body, label %for.end - -for.body: - %idxprom = zext i32 %i.0 to i64 - %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom - %0 = load i32, i32* %arrayidx, align 4 - %add = add nsw i32 %sum.0, %0 - %inc = add nsw i32 %i.0, 1 - br label %for.cond - -for.end: - ret i32 %sum.0 -} - -define i32 @test6(i32* %a, i32 %b) { -; CHECK-LABEL: @test6( -; CHECK: [[B_SEXT:%[a-z0-9]+]] = sext i32 %b to i64 -; CHECK: for.cond: -; CHECK: icmp sle i64 %indvars.iv, [[B_SEXT]] - -entry: - br label %for.cond - -for.cond: - %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] - %cmp = icmp sle i32 %i.0, %b - br i1 %cmp, label %for.body, label %for.end - -for.body: - %idxprom = zext i32 %i.0 to i64 - %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom - %0 = load i32, i32* %arrayidx, align 4 - %add = add nsw i32 %sum.0, %0 - %inc = add nsw i32 %i.0, 1 - br label %for.cond - -for.end: - ret i32 %sum.0 -} - -define i32 @test7(i32* %a, i32 %b) { -; CHECK-LABEL: @test7( -; CHECK: [[B_ZEXT:%[a-z0-9]+]] = zext i32 %b to i64 -; CHECK: [[B_SEXT:%[a-z0-9]+]] = sext i32 %b to i64 -; CHECK: for.cond: -; CHECK: icmp ule i64 %indvars.iv, [[B_ZEXT]] -; CHECK: for.body: -; CHECK: icmp sle i64 %indvars.iv, [[B_SEXT]] - -entry: - br label %for.cond - -for.cond: - %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] - %cmp = icmp ule i32 %i.0, %b - br i1 %cmp, label %for.body, label %for.end - -for.body: - %idxprom = sext i32 %i.0 to i64 - %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom - %0 = load i32, i32* %arrayidx, align 4 - %add = add nsw i32 %sum.0, %0 - %inc = add nsw i32 %i.0, 1 - %cmp2 = icmp sle i32 %i.0, %b - br i1 %cmp2, label %for.cond, label %for.end - -for.end: - ret i32 %sum.0 -} - -define i32 @test8(i32* %a, i32 %b, i32 %init) { -; CHECK-LABEL: @test8( -; CHECK: [[INIT_SEXT:%[a-z0-9]+]] = sext i32 %init to i64 -; CHECK: [[B_ZEXT:%[a-z0-9]+]] = zext i32 %b to i64 -; CHECK: for.cond: -; Note: %indvars.iv is the sign extension of %i.0 -; CHECK: %indvars.iv = phi i64 [ [[INIT_SEXT]], %for.cond.preheader ], [ %indvars.iv.next, %for.body ] -; CHECK: icmp ule i64 %indvars.iv, [[B_ZEXT]] - -entry: - %e = icmp sgt i32 %init, 0 - br i1 %e, label %for.cond, label %leave - -for.cond: - %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %i.0 = phi i32 [ %init, %entry ], [ %inc, %for.body ] - %cmp = icmp ule i32 %i.0, %b - br i1 %cmp, label %for.body, label %for.end - -for.body: - %idxprom = sext i32 %i.0 to i64 - %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom - %0 = load i32, i32* %arrayidx, align 4 - %add = add nsw i32 %sum.0, %0 - %inc = add nsw i32 %i.0, 1 - %cmp2 = icmp slt i32 0, %inc - br i1 %cmp2, label %for.cond, label %for.end - -for.end: - ret i32 %sum.0 - -leave: - ret i32 0 -} - -define i32 @test9(i32* %a, i32 %b, i32 %init) { -; CHECK-LABEL: @test9( -; CHECK: [[INIT_ZEXT:%[a-z0-9]+]] = zext i32 %init to i64 -; CHECK: [[B_SEXT:%[a-z0-9]+]] = sext i32 %b to i64 -; CHECK: for.cond: -; Note: %indvars.iv is the zero extension of %i.0 -; CHECK: %indvars.iv = phi i64 [ [[INIT_ZEXT]], %for.cond.preheader ], [ %indvars.iv.next, %for.body ] -; CHECK: icmp slt i64 %indvars.iv, [[B_SEXT]] - -entry: - %e = icmp sgt i32 %init, 0 - br i1 %e, label %for.cond, label %leave - -for.cond: - %sum.0 = phi i32 [ 0, %entry ], [ %add, %for.body ] - %i.0 = phi i32 [ %init, %entry ], [ %inc, %for.body ] - %cmp = icmp slt i32 %i.0, %b - br i1 %cmp, label %for.body, label %for.end - -for.body: - %idxprom = zext i32 %i.0 to i64 - %arrayidx = getelementptr inbounds i32, i32* %a, i64 %idxprom - %0 = load i32, i32* %arrayidx, align 4 - %add = add nsw i32 %sum.0, %0 - %inc = add nsw i32 %i.0, 1 - %cmp2 = icmp slt i32 0, %inc - br i1 %cmp2, label %for.cond, label %for.end - -for.end: - ret i32 %sum.0 - -leave: - ret i32 0 -} - -declare void @consume.i64(i64) -declare void @consume.i1(i1) - -define i32 @test10(i32 %v) { -; CHECK-LABEL: @test10( - entry: -; CHECK-NOT: zext - br label %loop - - loop: -; CHECK: [[WIDE_V:%[a-z0-9]+]] = sext i32 %v to i64 -; CHECK: loop: -; CHECK: %indvars.iv = phi i64 [ %indvars.iv.next, %loop ], [ 0, %entry ] -; CHECK: %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 -; CHECK: [[MUL:%[a-z0-9]+]] = mul nsw i64 %indvars.iv, -1 -; CHECK: [[CMP:%[a-z0-9]+]] = icmp eq i64 [[MUL]], [[WIDE_V]] -; CHECK: call void @consume.i1(i1 [[CMP]]) - - %i = phi i32 [ 0, %entry ], [ %i.inc, %loop ] - %i.inc = add i32 %i, 1 - %iv = mul i32 %i, -1 - %cmp = icmp eq i32 %iv, %v - call void @consume.i1(i1 %cmp) - %be.cond = icmp slt i32 %i.inc, 11 - %ext = sext i32 %iv to i64 - call void @consume.i64(i64 %ext) - br i1 %be.cond, label %loop, label %leave - - leave: - ret i32 22 -} |