; RUN: llc < %s -march=x86 -stats -regalloc=linearscan |& grep {Number of loads added} | grep 2 ; RUN: llc < %s -march=x86 -stats -regalloc=linearscan |& grep {Number of spill slots allocated} | grep 1 ; RUN: llc < %s -march=x86 -stats -regalloc=linearscan |& grep {Number of machine instrs printed} | grep 34 ; PR3495 target triple = "i386-pc-linux-gnu" @x = external global [8 x i32], align 32 ; <[8 x i32]*> [#uses=1] @rows = external global [8 x i32], align 32 ; <[8 x i32]*> [#uses=2] @up = external global [15 x i32], align 32 ; <[15 x i32]*> [#uses=2] @down = external global [15 x i32], align 32 ; <[15 x i32]*> [#uses=1] define i32 @queens(i32 %c) nounwind { entry: %tmp91 = add i32 %c, 1 ; [#uses=3] %tmp135 = getelementptr [8 x i32]* @x, i32 0, i32 %tmp91 ; [#uses=1] br label %bb bb: ; preds = %bb569, %entry %r25.0.reg2mem.0 = phi i32 [ 0, %entry ], [ %indvar.next715, %bb569 ] ; [#uses=4] %tmp27 = getelementptr [8 x i32]* @rows, i32 0, i32 %r25.0.reg2mem.0 ; [#uses=1] %tmp28 = load i32* %tmp27, align 4 ; [#uses=1] %tmp29 = icmp eq i32 %tmp28, 0 ; [#uses=1] br i1 %tmp29, label %bb569, label %bb31 bb31: ; preds = %bb %tmp35 = sub i32 %r25.0.reg2mem.0, 0 ; [#uses=1] %tmp36 = getelementptr [15 x i32]* @up, i32 0, i32 %tmp35 ; [#uses=1] %tmp37 = load i32* %tmp36, align 4 ; [#uses=1] %tmp38 = icmp eq i32 %tmp37, 0 ; [#uses=1] br i1 %tmp38, label %bb569, label %bb41 bb41: ; preds = %bb31 %tmp54 = sub i32 %r25.0.reg2mem.0, %c ; [#uses=1] %tmp55 = add i32 %tmp54, 7 ; [#uses=1] %tmp62 = getelementptr [15 x i32]* @up, i32 0, i32 %tmp55 ; [#uses=2] store i32 0, i32* %tmp62, align 4 br label %bb92 bb92: ; preds = %bb545, %bb41 %r20.0.reg2mem.0 = phi i32 [ 0, %bb41 ], [ %indvar.next711, %bb545 ] ; [#uses=5] %tmp94 = getelementptr [8 x i32]* @rows, i32 0, i32 %r20.0.reg2mem.0 ; [#uses=1] %tmp95 = load i32* %tmp94, align 4 ; [#uses=0] %tmp112 = add i32 %r20.0.reg2mem.0, %tmp91 ; [#uses=1] %tmp113 = getelementptr [15 x i32]* @down, i32 0, i32 %tmp112 ; [#uses=2] %tmp114 = load i32* %tmp113, align 4 ; [#uses=1] %tmp115 = icmp eq i32 %tmp114, 0 ; [#uses=1] br i1 %tmp115, label %bb545, label %bb118 bb118: ; preds = %bb92 %tmp122 = sub i32 %r20.0.reg2mem.0, %tmp91 ; [#uses=0] store i32 0, i32* %tmp113, align 4 store i32 %r20.0.reg2mem.0, i32* %tmp135, align 4 br label %bb142 bb142: ; preds = %bb142, %bb118 %k18.0.reg2mem.0 = phi i32 [ 0, %bb118 ], [ %indvar.next709, %bb142 ] ; [#uses=1] %indvar.next709 = add i32 %k18.0.reg2mem.0, 1 ; [#uses=2] %exitcond710 = icmp eq i32 %indvar.next709, 8 ; [#uses=1] br i1 %exitcond710, label %bb155, label %bb142 bb155: ; preds = %bb142 %tmp156 = tail call i32 @putchar(i32 10) nounwind ; [#uses=0] br label %bb545 bb545: ; preds = %bb155, %bb92 %indvar.next711 = add i32 %r20.0.reg2mem.0, 1 ; [#uses=2] %exitcond712 = icmp eq i32 %indvar.next711, 8 ; [#uses=1] br i1 %exitcond712, label %bb553, label %bb92 bb553: ; preds = %bb545 store i32 1, i32* %tmp62, align 4 br label %bb569 bb569: ; preds = %bb553, %bb31, %bb %indvar.next715 = add i32 %r25.0.reg2mem.0, 1 ; [#uses=1] br label %bb } declare i32 @putchar(i32)