; RUN: opt < %s -loop-reduce -S | FileCheck %s ; The multiply in bb2 must not be reduced to an add, as the sext causes the ; %1 argument to become negative after a while. ; CHECK: sext i8 ; CHECK: mul i32 ; CHECK: store i32 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128" target triple = "i386-apple-darwin9.6" @table = common global [32 x [256 x i32]] zeroinitializer, align 32 ; <[32 x [256 x i32]]*> [#uses=2] define i32 @main() nounwind { bb4.thread: br label %bb2 bb2: ; preds = %bb4, %bb2, %bb4.thread %i.0.reg2mem.0.ph = phi i32 [ 0, %bb4.thread ], [ %i.0.reg2mem.0.ph, %bb2 ], [ %indvar.next9, %bb4 ] ; [#uses=4] %j.0.reg2mem.0 = phi i32 [ 0, %bb4.thread ], [ %indvar.next, %bb2 ], [ 0, %bb4 ] ; [#uses=3] %0 = trunc i32 %j.0.reg2mem.0 to i8 ; [#uses=1] %1 = sext i8 %0 to i32 ; [#uses=1] %2 = mul i32 %1, %i.0.reg2mem.0.ph ; [#uses=1] %3 = getelementptr [32 x [256 x i32]], [32 x [256 x i32]]* @table, i32 0, i32 %i.0.reg2mem.0.ph, i32 %j.0.reg2mem.0 ; [#uses=1] store i32 %2, i32* %3, align 4 %indvar.next = add i32 %j.0.reg2mem.0, 1 ; [#uses=2] %exitcond = icmp eq i32 %indvar.next, 256 ; [#uses=1] br i1 %exitcond, label %bb4, label %bb2 bb4: ; preds = %bb2 %indvar.next9 = add i32 %i.0.reg2mem.0.ph, 1 ; [#uses=2] %exitcond10 = icmp eq i32 %indvar.next9, 32 ; [#uses=1] br i1 %exitcond10, label %bb5, label %bb2 bb5: ; preds = %bb4 %4 = load i32, i32* getelementptr ([32 x [256 x i32]], [32 x [256 x i32]]* @table, i32 0, i32 9, i32 132), align 16 ; [#uses=1] %5 = icmp eq i32 %4, -1116 ; [#uses=1] br i1 %5, label %bb7, label %bb6 bb6: ; preds = %bb5 tail call void @abort() noreturn nounwind unreachable bb7: ; preds = %bb5 ret i32 0 } declare void @abort() noreturn nounwind