diff options
Diffstat (limited to 'test/Transforms/LoopUnswitch')
5 files changed, 52 insertions, 27 deletions
diff --git a/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll b/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll index 20f2c2b..9d73d31 100644 --- a/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll +++ b/test/Transforms/LoopUnswitch/2008-11-03-Invariant.ll @@ -1,4 +1,4 @@ -; RUN: opt < %s -loop-unswitch -stats -disable-output |& grep "1 loop-unswitch - Number of branches unswitched" | count 1 +; RUN: opt < %s -loop-unswitch -stats -disable-output 2>&1 | grep "1 loop-unswitch - Number of branches unswitched" | count 1 ; PR 3170 define i32 @a(i32 %x, i32 %y) nounwind { entry: diff --git a/test/Transforms/LoopUnswitch/2011-11-18-SimpleSwitch.ll b/test/Transforms/LoopUnswitch/2011-11-18-SimpleSwitch.ll index 8389fe4..c1fd588 100644 --- a/test/Transforms/LoopUnswitch/2011-11-18-SimpleSwitch.ll +++ b/test/Transforms/LoopUnswitch/2011-11-18-SimpleSwitch.ll @@ -35,11 +35,11 @@ ; CHECK: loop_begin.us1: ; preds = %loop_begin.backedge.us5, %.split.split.us ; CHECK-NEXT: %var_val.us2 = load i32* %var ; CHECK-NEXT: switch i32 2, label %default.us-lcssa.us-lcssa.us [ -; CHECK-NEXT: i32 1, label %inc.us3 -; CHECK-NEXT: i32 2, label %dec.us4 +; CHECK-NEXT: i32 1, label %inc.us4 +; CHECK-NEXT: i32 2, label %dec.us3 ; CHECK-NEXT: ] -; CHECK: dec.us4: ; preds = %loop_begin.us1 +; CHECK: dec.us3: ; preds = %loop_begin.us1 ; CHECK-NEXT: call void @decf() noreturn nounwind ; CHECK-NEXT: br label %loop_begin.backedge.us5 @@ -81,7 +81,7 @@ inc: dec: call void @decf() noreturn nounwind br label %loop_begin -default: +default: br label %loop_exit loop_exit: ret i32 0 diff --git a/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches-Threshold.ll b/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches-Threshold.ll index 05d98d5..f3db471 100644 --- a/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches-Threshold.ll +++ b/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches-Threshold.ll @@ -19,15 +19,15 @@ ; CHECK: switch i32 1, label %second_switch.us [ ; CHECK-NEXT: i32 1, label %inc.us -; CHECK: inc.us: ; preds = %second_switch.us, %loop_begin.us -; CHECK-NEXT: call void @incf() noreturn nounwind -; CHECK-NEXT: br label %loop_begin.backedge.us - ; CHECK: second_switch.us: ; preds = %loop_begin.us ; CHECK-NEXT: switch i32 %d, label %default.us [ ; CHECK-NEXT: i32 1, label %inc.us ; CHECK-NEXT: ] +; CHECK: inc.us: ; preds = %second_switch.us, %loop_begin.us +; CHECK-NEXT: call void @incf() noreturn nounwind +; CHECK-NEXT: br label %loop_begin.backedge.us + ; CHECK: .split: ; preds = %..split_crit_edge ; CHECK-NEXT: br label %loop_begin @@ -73,7 +73,7 @@ inc: call void @incf() noreturn nounwind br label %loop_begin -default: +default: br label %loop_begin loop_exit: diff --git a/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll b/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll index 1b186d6..2708996 100644 --- a/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll +++ b/test/Transforms/LoopUnswitch/2011-11-18-TwoSwitches.ll @@ -25,14 +25,14 @@ ; CHECK-NEXT: switch i32 1, label %second_switch.us.us [ ; CHECK-NEXT: i32 1, label %inc.us.us -; CHECK: inc.us.us: ; preds = %second_switch.us.us, %loop_begin.us.us -; CHECK-NEXT: call void @incf() noreturn nounwind -; CHECK-NEXT: br label %loop_begin.backedge.us.us - ; CHECK: second_switch.us.us: ; preds = %loop_begin.us.us ; CHECK-NEXT: switch i32 1, label %default.us.us [ ; CHECK-NEXT: i32 1, label %inc.us.us +; CHECK: inc.us.us: ; preds = %second_switch.us.us, %loop_begin.us.us +; CHECK-NEXT: call void @incf() noreturn nounwind +; CHECK-NEXT: br label %loop_begin.backedge.us.us + ; CHECK: .split.us.split: ; preds = %.split.us..split.us.split_crit_edge ; CHECK-NEXT: br label %loop_begin.us @@ -41,10 +41,6 @@ ; CHECK-NEXT: switch i32 1, label %second_switch.us [ ; CHECK-NEXT: i32 1, label %inc.us -; CHECK: inc.us: ; preds = %second_switch.us.inc.us_crit_edge, %loop_begin.us -; CHECK-NEXT: call void @incf() noreturn nounwind -; CHECK-NEXT: br label %loop_begin.backedge.us - ; CHECK: second_switch.us: ; preds = %loop_begin.us ; CHECK-NEXT: switch i32 %d, label %default.us [ ; CHECK-NEXT: i32 1, label %second_switch.us.inc.us_crit_edge @@ -53,6 +49,10 @@ ; CHECK: second_switch.us.inc.us_crit_edge: ; preds = %second_switch.us ; CHECK-NEXT: br i1 true, label %us-unreachable8, label %inc.us +; CHECK: inc.us: ; preds = %second_switch.us.inc.us_crit_edge, %loop_begin.us +; CHECK-NEXT: call void @incf() noreturn nounwind +; CHECK-NEXT: br label %loop_begin.backedge.us + ; CHECK: .split: ; preds = %..split_crit_edge ; CHECK-NEXT: %3 = icmp eq i32 %d, 1 ; CHECK-NEXT: br i1 %3, label %.split.split.us, label %.split..split.split_crit_edge @@ -65,21 +65,21 @@ ; CHECK: loop_begin.us1: ; preds = %loop_begin.backedge.us6, %.split.split.us ; CHECK-NEXT: %var_val.us2 = load i32* %var -; CHECK-NEXT: switch i32 %c, label %second_switch.us4 [ +; CHECK-NEXT: switch i32 %c, label %second_switch.us3 [ ; CHECK-NEXT: i32 1, label %loop_begin.inc_crit_edge.us ; CHECK-NEXT: ] -; CHECK: inc.us3: ; preds = %loop_begin.inc_crit_edge.us, %second_switch.us4 -; CHECK-NEXT: call void @incf() noreturn nounwind -; CHECK-NEXT: br label %loop_begin.backedge.us6 - -; CHECK: second_switch.us4: ; preds = %loop_begin.us1 +; CHECK: second_switch.us3: ; preds = %loop_begin.us1 ; CHECK-NEXT: switch i32 1, label %default.us5 [ -; CHECK-NEXT: i32 1, label %inc.us3 +; CHECK-NEXT: i32 1, label %inc.us4 ; CHECK-NEXT: ] +; CHECK: inc.us4: ; preds = %loop_begin.inc_crit_edge.us, %second_switch.us3 +; CHECK-NEXT: call void @incf() noreturn nounwind +; CHECK-NEXT: br label %loop_begin.backedge.us6 + ; CHECK: loop_begin.inc_crit_edge.us: ; preds = %loop_begin.us1 -; CHECK-NEXT: br i1 true, label %us-unreachable.us-lcssa.us, label %inc.us3 +; CHECK-NEXT: br i1 true, label %us-unreachable.us-lcssa.us, label %inc.us4 ; CHECK: .split.split: ; preds = %.split..split.split_crit_edge ; CHECK-NEXT: br label %loop_begin @@ -127,7 +127,7 @@ inc: call void @incf() noreturn nounwind br label %loop_begin -default: +default: br label %loop_begin loop_exit: diff --git a/test/Transforms/LoopUnswitch/2012-05-20-Phi.ll b/test/Transforms/LoopUnswitch/2012-05-20-Phi.ll new file mode 100644 index 0000000..4c63a56 --- /dev/null +++ b/test/Transforms/LoopUnswitch/2012-05-20-Phi.ll @@ -0,0 +1,25 @@ +; RUN: opt < %s -loop-unswitch -disable-output +; PR12887 +target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" +target triple = "x86_64-unknown-linux-gnu" + +@a = common global i32 0, align 4 +@c = common global i32 0, align 4 +@b = common global i32 0, align 4 + +define void @func() noreturn nounwind uwtable { +entry: + %0 = load i32* @a, align 4 + %tobool = icmp eq i32 %0, 0 + %1 = load i32* @b, align 4 + br label %while.body + +while.body: ; preds = %while.body, %entry + %d.0 = phi i8 [ undef, %entry ], [ %conv2, %while.body ] + %conv = sext i8 %d.0 to i32 + %cond = select i1 %tobool, i32 0, i32 %conv + %conv11 = zext i8 %d.0 to i32 + %add = add i32 %1, %conv11 + %conv2 = trunc i32 %add to i8 + br label %while.body +} |
